diff --git a/CHANGELOG.md b/CHANGELOG.md
index da1ab0b775..edd6f8f64d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,10 +3,10 @@
 ## v7.9.1 (Planned at 19.01.2020
 
 ### Bugfixes
-- fix(cpicker) fix division by zero 
+- fix(cpicker) fix division by zero
 - fix(dropdown) fix selecting options after the last one
 - fix(msgbox) use the animation time provided
-- fix(gpu_nxp_pxp) fix incorrent define name 
+- fix(gpu_nxp_pxp) fix incorrect define name
 - fix(indev) don't leave edit mode if there is only one object in the group
 
 
@@ -14,7 +14,7 @@
 
 ### New features
 - feat(chart) add lv_chart_remove_series and lv_chart_hide_series
-- feat(img_cahce) allow disabling image cacheing
+- feat(img_cahce) allow disabling image caching
 - calendar: make get_day_of_week() public
 - Added support for Zephyr integration
 
@@ -56,7 +56,7 @@
 - fix reference to LV_DRAW_BUF_MAX_NUM in lv_mem.c
 - fix(polygon draw) join adjacent points if they are on the same coordinate
 - fix(linemeter) fix invalidation when setting new value
-- fix(table) add missing invalidation when changeing cell type
+- fix(table) add missing invalidation when changing cell type
 - refactor(roller) rename LV_ROLLER_MODE_INIFINITE -> LV_ROLLER_MODE_INFINITE
 
 ## v7.7.2 (17.11.2020)
@@ -66,7 +66,7 @@
 - fix(arc) fix and improve arc dragging
 - label: Repair calculate back `dot` character logical error which cause infinite loop.
 - fix(theme_material): remove the bottom border from tabview header
-- fix(imgbtn) guess a the closest availabe state with valid src
+- fix(imgbtn) guess a the closest available state with valid src
 - fix(spinbox) update cursor position in lv_spinbox_set_step
 
 ## v7.7.1 (03.11.2020)
@@ -83,7 +83,7 @@
 - Allow max. 16 cell types for table
 - Add `lv_table_set_text_fmt()`
 - Use margin on calendar header to set distances and padding to the size of the header
-- Add `text_sel_bg` style proeprty
+- Add `text_sel_bg` style property
 
 ### Bugfixes
 - Theme update to support text selection background
@@ -123,7 +123,7 @@
 - Add 10px and 8ox built in fonts
 
 ### Bugfixes
-- Fix unexpeted DEFOCUS on lv_page when clicking to bg after the scrollable
+- Fix unexpected DEFOCUS on lv_page when clicking to bg after the scrollable
 - Fix `lv_obj_del` and `lv_obj_clean` if the children list changed during deletion.
 - Adjust button matrix button width to include padding when spanning multiple units.
 - Add rounding to btnmatrix line height calculation
@@ -138,10 +138,10 @@ The main new features of v7.4 are run-time font loading, style caching and arc k
 ### New features
 - Add `lv_font_load()` function - Loads a `lv_font_t` object from a binary font file
 - Add `lv_font_free()` function - Frees the memory allocated by the `lv_font_load()` function
-- Add style caching to reduce acces time of properties with default value
+- Add style caching to reduce access time of properties with default value
 - arc: add set value by click feature
 - arc: add `LV_ARC_PART_KNOB` similarly to slider
-- send gestures even if the the obejct was dragged. User can check dragging with `lv_indev_is_dragging(lv_indev_act())` in the event function.
+- send gestures event if the object was dragged. User can check dragging with `lv_indev_is_dragging(lv_indev_act())` in the event function.
 
 ### Bugfixes
 - Fix color bleeding on border drawing
@@ -225,7 +225,7 @@ The main new features of v7.4 are run-time font loading, style caching and arc k
 - Add lv_btnmatrix_set/get_align capability
 - DMA2D: Remove dependency on ST CubeMX HAL
 - Added `max_used` propriety to `lv_mem_monitor_t` struct
-- In `lv_init` test if the the strings are UTF-8 encoded.
+- In `lv_init` test if the strings are UTF-8 encoded.
 - Add `user_data` to themes
 - Add LV_BIG_ENDIAN_SYSTEM flag to lv_conf.h in order to fix displaying images on big endian systems.
 - Add inline function lv_checkbox_get_state(const lv_obj_t * cb) to extend the checkbox functionality.
@@ -279,7 +279,7 @@ The main new features of v7.4 are run-time font loading, style caching and arc k
 - Remove memcpy from `lv_ll` (caused issues with some optimization settings)
 - `lv_chart` fix X tick drawing
 - Fix vertical dashed line drawing
-- Some additonal minor fixes and formattings
+- Some additional minor fixes and formattings
 
 ## v7.0.0 (18.05.2020)
 
diff --git a/Kconfig b/Kconfig
index 865c42e47c..30fbac0701 100644
--- a/Kconfig
+++ b/Kconfig
@@ -258,7 +258,7 @@ menu "LVGL configuration"
 
     menu "Image decoder and cache"
         config LV_IMG_CF_INDEXED
-            bool "Enable indexed (pallete) images."
+            bool "Enable indexed (palette) images."
             default y if !LV_CONF_MINIMAL
         config LV_IMG_CF_ALPHA
             bool "Enable alpha indexed images."
diff --git a/docs/ROADMAP.md b/docs/ROADMAP.md
index 93d2846784..06509e40d3 100644
--- a/docs/ROADMAP.md
+++ b/docs/ROADMAP.md
@@ -27,7 +27,7 @@ Planned to November/December 2020
 - Simplified File system interface ([feat/new_fs_api](https://github.com/lvgl/lvgl/tree/feat/new-fs-api) branch) to make porting easier
   - Work in progress
 - Remove the align parameter from `lv_canvas_draw_text`
-- Make the copy paramter obsolate in create functions
+- Make the copy parameter obsolate in create functions
 - Optimize and simplifie styles [#1832](https://github.com/lvgl/lvgl/issues/1832)
 - Use a more generic inheritenace [#1919](https://github.com/lvgl/lvgl/issues/1919)
 
@@ -39,7 +39,7 @@ Planned to November/December 2020
 ## v9
 - Simplify `group`s. Discussion is [here](https://forum.lvgl.io/t/lv-group-tabindex/2927/3).
 - Consider direct binary font format support
-- Optimize line and cirle drawing and masking
+- Optimize line and circle drawing and masking
 - Reconsider color format management for run time color format setting, and custom color format usage. (Also [RGB888](https://github.com/lvgl/lvgl/issues/1722))
 - 9-patch support for `lv_imgbtn`.
 - Handle stride. See [#1858](https://github.com/lvgl/lvgl/issues/1858)
@@ -51,10 +51,10 @@ Planned to November/December 2020
 - lv_mem_alloc_aligned(size, align)
 - Text node. See [#1701](https://github.com/lvgl/lvgl/issues/1701#issuecomment-699479408)
 - CPP binding. See [Forum](https://forum.lvgl.io/t/is-it-possible-to-officially-support-optional-cpp-api/2736)
-- Optmize font decompression
+- Optimize font decompression
 - Switch to RGBA colors in styles
 - Need coverage report for tests
-- Need static analize (via coverity.io or somehing else)
+- Need static analyze (via coverity.io or somehing else)
 - Support dot_begin and dot_middle long modes for labels
 - Add new label alignment modes. [#1656](https://github.com/lvgl/lvgl/issues/1656)
 - Support larger images: [#1892](https://github.com/lvgl/lvgl/issues/1892)
diff --git a/examples/porting/lv_port_disp_template.c b/examples/porting/lv_port_disp_template.c
index 7d8b449d9f..a4f95fab40 100644
--- a/examples/porting/lv_port_disp_template.c
+++ b/examples/porting/lv_port_disp_template.c
@@ -55,7 +55,7 @@ void lv_port_disp_init(void)
      *----------------------------*/
 
     /* LVGL requires a buffer where it internally draws the widgets.
-     * Later this buffer will passed your display drivers `flush_cb` to copy its content to your dispay.
+     * Later this buffer will passed your display drivers `flush_cb` to copy its content to your display.
      * The buffer has to be greater than 1 display row
      *
      * There are three buffering configurations:
diff --git a/examples/porting/lv_port_fs_template.c b/examples/porting/lv_port_fs_template.c
index 6b376042c2..c8f5fe21be 100644
--- a/examples/porting/lv_port_fs_template.c
+++ b/examples/porting/lv_port_fs_template.c
@@ -80,7 +80,7 @@ void lv_port_fs_init(void)
     fs_init();
 
     /*---------------------------------------------------
-     * Register the file system interface  in LVGL
+     * Register the file system interface in LVGL
      *--------------------------------------------------*/
 
     /* Add a simple drive to open images */
@@ -117,7 +117,7 @@ void lv_port_fs_init(void)
 /* Initialize your Storage device and File system. */
 static void fs_init(void)
 {
-    /*E.g. for FatFS initalize the SD card and FatFS itself*/
+    /*E.g. for FatFS initialize the SD card and FatFS itself*/
 
     /*You code here*/
 }
@@ -262,7 +262,7 @@ static lv_fs_res_t fs_tell (lv_fs_drv_t * drv, void * file_p, uint32_t * pos_p)
  * Delete a file
  * @param drv pointer to a driver where this function belongs
  * @param path path of the file to delete
- * @return  LV_FS_RES_OK or any error from lv_fs_res_t enum
+ * @return LV_FS_RES_OK or any error from lv_fs_res_t enum
  */
 static lv_fs_res_t fs_remove (lv_fs_drv_t * drv, const char *path)
 {
diff --git a/lv_conf_template.h b/lv_conf_template.h
index e53e97859d..a8f60092fa 100644
--- a/lv_conf_template.h
+++ b/lv_conf_template.h
@@ -335,7 +335,7 @@ typedef void * lv_indev_drv_user_data_t;            /*Type of user data in the i
  * If an invalid parameter is found an error log message is printed and
  * the MCU halts at the error. (`LV_USE_LOG` should be enabled)
  * If you are debugging the MCU you can pause
- * the debugger to see exactly where  the issue is.
+ * the debugger to see exactly where the issue is.
  *
  * The behavior of asserts can be overwritten by redefining them here.
  * E.g. #define LV_ASSERT_MEM(p)  <my_assert_code>
@@ -370,7 +370,7 @@ typedef void * lv_indev_drv_user_data_t;            /*Type of user data in the i
  *    FONT USAGE
  *===================*/
 
-/* The built-in fonts contains the ASCII range and some Symbols with  4 bit-per-pixel.
+/* The built-in fonts contains the ASCII range and some Symbols with 4 bit-per-pixel.
  * The symbols are available via `LV_SYMBOL_...` defines
  * More info about fonts: https://docs.lvgl.io/v7/en/html/overview/font.html
  * To create a new font go to: https://lvgl.com/ttf-font-to-c-array
diff --git a/scripts/release/com.py b/scripts/release/com.py
index 4126c354dd..8a8f4d79d1 100755
--- a/scripts/release/com.py
+++ b/scripts/release/com.py
@@ -14,7 +14,7 @@ def cmd(c, ask_on_err = True):
   if r:
     print("### Error: " + str(r))
     if ask_on_err:
-        input("Press Enter to continue exectution...")
+        input("Press Enter to continue execution...")
 
 def define_set(fn, name, value):
     print("In " + fn + " set " + name + " to " + value)
diff --git a/scripts/release/main.py b/scripts/release/main.py
index d22d322345..ba9ab20434 100755
--- a/scripts/release/main.py
+++ b/scripts/release/main.py
@@ -47,7 +47,7 @@ if __name__ == '__main__':
 
 #    if(len(sys.argv) != 2):
 #        print("Missing argument. Usage ./release.py bugfix | minor | major")
-#        print("Use minor by deafult")
+#        print("Use minor by default")
 #    else:
 #        dev_prepare = sys.argv[1]
 
diff --git a/scripts/release/proj.py b/scripts/release/proj.py
index 732c200e59..c28fd3207d 100755
--- a/scripts/release/proj.py
+++ b/scripts/release/proj.py
@@ -10,7 +10,7 @@ import com
 def make(repo_path, auto_push = False):
         os.chdir("./" + repo_path)
         com.cmd('git checkout master')
-        print("Upadte lvgl");
+        print("Update lvgl");
         os.chdir("./lvgl")
         com.cmd("git checkout master")
         com.cmd("git pull origin --tags")
@@ -37,11 +37,11 @@ def make(repo_path, auto_push = False):
                 com.define_set("lv_conf.h", str(key), str(val))
 
         if os.path.exists("lv_examples"):
-            print("Upadte lv_examples");
+            print("Update lv_examples");
             com.cmd("cd lv_examples; git co " + release_br + "; git pull origin " + release_br)
 
         if os.path.exists("lv_drivers"):
-            print("upadte lv_drivers");
+            print("update lv_drivers");
             com.cmd("cd lv_drivers " + release_br + "; git pull origin " + release_br)
 
         msg = 'Update to ' + ver_str
diff --git a/src/lv_conf_kconfig.h b/src/lv_conf_kconfig.h
index 3c88c60118..6225ed02a4 100644
--- a/src/lv_conf_kconfig.h
+++ b/src/lv_conf_kconfig.h
@@ -337,9 +337,9 @@ extern "C" {
  *-----------------*/
 #ifndef LV_TEXT_ENC
 #ifdef CONFIG_LV_TXT_ENC_UTF8
-#define CONFIG_LV_TXT_ENC  LV_TXT_ENC_UTF8
+#define CONFIG_LV_TXT_ENC LV_TXT_ENC_UTF8
 #elif defined CONFIG_LV_TXT_ENC_ASCII
-#define CONFIG_LV_TXT_ENC  LV_TXT_ENC_ASCII
+#define CONFIG_LV_TXT_ENC LV_TXT_ENC_ASCII
 #endif
 #endif
 
@@ -363,11 +363,11 @@ extern "C" {
 
 #ifndef LV_USE_EXT_CLICK_AREA
 #ifdef CONFIG_LV_USE_EXT_CLICK_AREA_OFF
-#define CONFIG_LV_USE_EXT_CLICK_AREA  LV_EXT_CLICK_AREA_OFF
+#define CONFIG_LV_USE_EXT_CLICK_AREA LV_EXT_CLICK_AREA_OFF
 #elif defined CONFIG_LV_USE_EXT_CLICK_AREA_TINY
-#define CONFIG_LV_USE_EXT_CLICK_AREA  LV_EXT_CLICK_AREA_TINY
+#define CONFIG_LV_USE_EXT_CLICK_AREA LV_EXT_CLICK_AREA_TINY
 #elif defined CONFIG_LV_USE_EXT_CLICK_AREA_FULL
-#define CONFIG_LV_USE_EXT_CLICK_AREA  LV_EXT_CLICK_AREA_FULL
+#define CONFIG_LV_USE_EXT_CLICK_AREA LV_EXT_CLICK_AREA_FULL
 #endif
 #endif
 
diff --git a/src/lv_core/lv_disp.c b/src/lv_core/lv_disp.c
index aaa8fb1ae3..c88cc9afb9 100644
--- a/src/lv_core/lv_disp.c
+++ b/src/lv_core/lv_disp.c
@@ -106,7 +106,7 @@ lv_obj_t * lv_disp_get_layer_top(lv_disp_t * disp)
 /**
  * Return with the sys. layer. (Same on every screen and it is above the normal screen and the top
  * layer)
- * @param disp pointer to display which sys. layer  should be get. (NULL to use the default screen)
+ * @param disp pointer to display which sys. layer should be get. (NULL to use the default screen)
  * @return pointer to the sys layer object  (transparent screen sized lv_obj)
  */
 lv_obj_t * lv_disp_get_layer_sys(lv_disp_t * disp)
diff --git a/src/lv_core/lv_disp.h b/src/lv_core/lv_disp.h
index 6353315ece..2206b2f4f7 100644
--- a/src/lv_core/lv_disp.h
+++ b/src/lv_core/lv_disp.h
@@ -73,7 +73,7 @@ lv_obj_t * lv_disp_get_layer_top(lv_disp_t * disp);
 /**
  * Return with the sys. layer. (Same on every screen and it is above the normal screen and the top
  * layer)
- * @param disp pointer to display which sys. layer  should be get. (NULL to use the default screen)
+ * @param disp pointer to display which sys. layer should be get. (NULL to use the default screen)
  * @return pointer to the sys layer object  (transparent screen sized lv_obj)
  */
 lv_obj_t * lv_disp_get_layer_sys(lv_disp_t * disp);
@@ -161,7 +161,7 @@ static inline lv_obj_t * lv_scr_act(void)
 }
 
 /**
- * Get the top layer  of the default display
+ * Get the top layer of the default display
  * @return pointer to the top layer
  */
 static inline lv_obj_t * lv_layer_top(void)
@@ -171,7 +171,7 @@ static inline lv_obj_t * lv_layer_top(void)
 
 /**
  * Get the active screen of the default display
- * @return  pointer to the sys layer
+ * @return pointer to the sys layer
  */
 static inline lv_obj_t * lv_layer_sys(void)
 {
diff --git a/src/lv_core/lv_group.c b/src/lv_core/lv_group.c
index ca91a39682..f47494cee1 100644
--- a/src/lv_core/lv_group.c
+++ b/src/lv_core/lv_group.c
@@ -81,7 +81,7 @@ lv_group_t * lv_group_create(void)
  */
 void lv_group_del(lv_group_t * group)
 {
-    /*Defocus the the currently focused object*/
+    /*Defocus the currently focused object*/
     if(group->obj_focus != NULL) {
         (*group->obj_focus)->signal_cb(*group->obj_focus, LV_SIGNAL_DEFOCUS, NULL);
         lv_obj_invalidate(*group->obj_focus);
@@ -185,7 +185,7 @@ void lv_group_remove_obj(lv_obj_t * obj)
  */
 void lv_group_remove_all_objs(lv_group_t * group)
 {
-    /*Defocus the the currently focused object*/
+    /*Defocus the currently focused object*/
     if(group->obj_focus != NULL) {
         (*group->obj_focus)->signal_cb(*group->obj_focus, LV_SIGNAL_DEFOCUS, NULL);
         lv_obj_invalidate(*group->obj_focus);
diff --git a/src/lv_core/lv_indev.c b/src/lv_core/lv_indev.c
index 336b377ea6..ed0d3a1523 100644
--- a/src/lv_core/lv_indev.c
+++ b/src/lv_core/lv_indev.c
@@ -597,7 +597,7 @@ static void indev_encoder_proc(lv_indev_t * i, lv_indev_data_t * data)
     }
 
     /* Save the last keys before anything else.
-     * They need to be already saved if the the function returns for any reason*/
+     * They need to be already saved if the function returns for any reason*/
     lv_indev_state_t last_state     = i->proc.types.keypad.last_state;
     i->proc.types.keypad.last_state = data->state;
     i->proc.types.keypad.last_key   = data->key;
@@ -803,7 +803,7 @@ static void indev_button_proc(lv_indev_t * i, lv_indev_data_t * data)
 {
     /* Die gracefully if i->btn_points is NULL */
     if(i->btn_points == NULL) {
-        LV_LOG_WARN("indev_button_proc: btn_points was  NULL");
+        LV_LOG_WARN("indev_button_proc: btn_points was NULL");
         return;
     }
 
diff --git a/src/lv_core/lv_obj.c b/src/lv_core/lv_obj.c
index a03e5cdab9..4efebbb5df 100644
--- a/src/lv_core/lv_obj.c
+++ b/src/lv_core/lv_obj.c
@@ -385,7 +385,7 @@ lv_obj_t * lv_obj_create(lv_obj_t * parent, const lv_obj_t * copy)
     lv_style_list_init(&new_obj->style_list);
     if(copy == NULL) {
         if(parent != NULL) lv_theme_apply(new_obj, LV_THEME_OBJ);
-        else  lv_theme_apply(new_obj, LV_THEME_SCR);
+        else lv_theme_apply(new_obj, LV_THEME_SCR);
     }
     else {
         lv_style_list_copy(&new_obj->style_list, &copy->style_list);
@@ -1222,7 +1222,7 @@ void lv_obj_remove_style(lv_obj_t * obj, uint8_t part, lv_style_t * style)
  * Release all used memories and cancel pending related transitions.
  * Typically used in `LV_SIGN_CLEAN_UP.
  * @param obj pointer to an object
- * @param part the part of the object which style list should be reseted.
+ * @param part the part of the object which style list should be reset.
  * E.g. `LV_OBJ_PART_MAIN`, `LV_BTN_PART_MAIN`, `LV_SLIDER_PART_KNOB`
  */
 void lv_obj_clean_style_list(lv_obj_t * obj, uint8_t part)
@@ -1244,7 +1244,7 @@ void lv_obj_clean_style_list(lv_obj_t * obj, uint8_t part)
  * Release all used memories and cancel pending related transitions.
  * Also notifies the object about the style change.
  * @param obj pointer to an object
- * @param part the part of the object which style list should be reseted.
+ * @param part the part of the object which style list should be reset.
  * E.g. `LV_OBJ_PART_MAIN`, `LV_BTN_PART_MAIN`, `LV_SLIDER_PART_KNOB`
  */
 void lv_obj_reset_style_list(lv_obj_t * obj, uint8_t part)
@@ -2388,7 +2388,7 @@ lv_coord_t lv_obj_get_width_margin(lv_obj_t * obj)
  * Set that width reduced by the left and right padding of the parent.
  * @param obj pointer to an object
  * @param div indicates how many columns are assumed.
- * If 1 the width will be set the the parent's width
+ * If 1 the width will be set the parent's width
  * If 2 only half parent width - inner padding of the parent
  * If 3 only third parent width - 2 * inner padding of the parent
  * @param span how many columns are combined
@@ -2409,7 +2409,7 @@ lv_coord_t lv_obj_get_width_grid(lv_obj_t * obj, uint8_t div, uint8_t span)
  * Get that height reduced by the top and bottom padding of the parent.
  * @param obj pointer to an object
  * @param div indicates how many rows are assumed.
- * If 1 the height will be set the the parent's height
+ * If 1 the height will be set the parent's height
  * If 2 only half parent height - inner padding of the parent
  * If 3 only third parent height - 2 * inner padding of the parent
  * @param span how many rows are combined
@@ -2429,7 +2429,7 @@ lv_coord_t lv_obj_get_height_grid(lv_obj_t * obj, uint8_t div, uint8_t span)
 /**
  * Get the automatic realign property of the object.
  * @param obj pointer to an object
- * @return  true: auto realign is enabled; false: auto realign is disabled
+ * @return true: auto realign is enabled; false: auto realign is disabled
  */
 bool lv_obj_get_auto_realign(const lv_obj_t * obj)
 {
@@ -3860,7 +3860,7 @@ static lv_design_res_t lv_obj_design(lv_obj_t * obj, const lv_area_t * clip_area
         if(lv_obj_get_style_border_blend_mode(obj, LV_OBJ_PART_MAIN) != LV_BLEND_MODE_NORMAL) return LV_DESIGN_RES_NOT_COVER;
         if(lv_obj_get_style_opa_scale(obj, LV_OBJ_PART_MAIN) < LV_OPA_MAX) return LV_DESIGN_RES_NOT_COVER;
 
-        return  LV_DESIGN_RES_COVER;
+        return LV_DESIGN_RES_COVER;
 
     }
     else if(mode == LV_DESIGN_DRAW_MAIN) {
diff --git a/src/lv_core/lv_obj.h b/src/lv_core/lv_obj.h
index 9551f1c625..c6afb93177 100644
--- a/src/lv_core/lv_obj.h
+++ b/src/lv_core/lv_obj.h
@@ -43,9 +43,9 @@ extern "C" {
 
 #define LV_MAX_ANCESTOR_NUM 8
 
-#define LV_EXT_CLICK_AREA_OFF   0
-#define LV_EXT_CLICK_AREA_TINY  1
-#define LV_EXT_CLICK_AREA_FULL  2
+#define LV_EXT_CLICK_AREA_OFF  0
+#define LV_EXT_CLICK_AREA_TINY 1
+#define LV_EXT_CLICK_AREA_FULL 2
 
 #define _LV_OBJ_PART_VIRTUAL_FIRST 0x01
 #define _LV_OBJ_PART_REAL_FIRST    0x40
@@ -203,7 +203,7 @@ typedef struct _lv_obj_t {
     lv_design_cb_t design_cb; /**< Object type specific design function*/
 
     void * ext_attr;            /**< Object type specific extended data*/
-    lv_style_list_t  style_list;
+    lv_style_list_t style_list;
 
 #if LV_USE_EXT_CLICK_AREA == LV_EXT_CLICK_AREA_TINY
     uint8_t ext_click_pad_hor; /**< Extra click padding in horizontal direction */
@@ -577,7 +577,7 @@ void lv_obj_remove_style(lv_obj_t * obj, uint8_t part, lv_style_t * style);
  * Release all used memories and cancel pending related transitions.
  * Typically used in `LV_SIGN_CLEAN_UP.
  * @param obj pointer to an object
- * @param part the part of the object which style list should be reseted.
+ * @param part the part of the object which style list should be reset.
  * E.g. `LV_OBJ_PART_MAIN`, `LV_BTN_PART_MAIN`, `LV_SLIDER_PART_KNOB`
  */
 void lv_obj_clean_style_list(lv_obj_t * obj, uint8_t part);
@@ -587,7 +587,7 @@ void lv_obj_clean_style_list(lv_obj_t * obj, uint8_t part);
  * Release all used memories and cancel pending related transitions.
  * Also notifies the object about the style change.
  * @param obj pointer to an object
- * @param part the part of the object which style list should be reseted.
+ * @param part the part of the object which style list should be reset.
  * E.g. `LV_OBJ_PART_MAIN`, `LV_BTN_PART_MAIN`, `LV_SLIDER_PART_KNOB`
  */
 void lv_obj_reset_style_list(lv_obj_t * obj, uint8_t part);
@@ -676,7 +676,7 @@ void _lv_obj_set_style_local_ptr(lv_obj_t * obj, uint8_t type, lv_style_property
 bool lv_obj_remove_style_local_prop(lv_obj_t * obj, uint8_t part, lv_style_property_t prop);
 
 /**
- * Enable/disable the use of style cahche for an object
+ * Enable/disable the use of style cache for an object
  * @param obj pointer to an object
  * @param dis true: disable; false: enable (re-enable)
  */
@@ -1055,7 +1055,7 @@ lv_coord_t lv_obj_get_width_margin(lv_obj_t * obj);
  * Take paddings into account.
  * @param obj pointer to an object
  * @param div indicates how many columns are assumed.
- * If 1 the width will be set the the parent's width
+ * If 1 the width will be set the parent's width
  * If 2 only half parent width - inner padding of the parent
  * If 3 only third parent width - 2 * inner padding of the parent
  * @param span how many columns are combined
@@ -1068,7 +1068,7 @@ lv_coord_t lv_obj_get_width_grid(lv_obj_t * obj, uint8_t div, uint8_t span);
  * Take paddings into account.
  * @param obj pointer to an object
  * @param div indicates how many rows are assumed.
- * If 1 the height will be set the the parent's height
+ * If 1 the height will be set the parent's height
  * If 2 only half parent height - inner padding of the parent
  * If 3 only third parent height - 2 * inner padding of the parent
  * @param span how many rows are combined
@@ -1079,7 +1079,7 @@ lv_coord_t lv_obj_get_height_grid(lv_obj_t * obj, uint8_t div, uint8_t span);
 /**
  * Get the automatic realign property of the object.
  * @param obj pointer to an object
- * @return  true: auto realign is enabled; false: auto realign is disabled
+ * @return true: auto realign is enabled; false: auto realign is disabled
  */
 bool lv_obj_get_auto_realign(const lv_obj_t * obj);
 
diff --git a/src/lv_core/lv_refr.c b/src/lv_core/lv_refr.c
index e8502431ba..a84a3d9174 100644
--- a/src/lv_core/lv_refr.c
+++ b/src/lv_core/lv_refr.c
@@ -74,7 +74,7 @@ void _lv_refr_init(void)
 /**
  * Redraw the invalidated areas now.
  * Normally the redrawing is periodically executed in `lv_task_handler` but a long blocking process
- * can prevent the call of `lv_task_handler`. In this case if the the GUI is updated in the process
+ * can prevent the call of `lv_task_handler`. In this case if the GUI is updated in the process
  * (e.g. progress bar) this function can be called when the screen should be updated.
  * @param disp pointer to display to refresh. NULL to refresh all displays.
  */
@@ -406,7 +406,7 @@ static void lv_refr_areas(void)
 
 /**
  * Refresh an area if there is Virtual Display Buffer
- * @param area_p  pointer to an area to refresh
+ * @param area_p pointer to an area to refresh
  */
 static void lv_refr_area(const lv_area_t * area_p)
 {
diff --git a/src/lv_core/lv_refr.h b/src/lv_core/lv_refr.h
index b4c9a85a52..25b598f98d 100644
--- a/src/lv_core/lv_refr.h
+++ b/src/lv_core/lv_refr.h
@@ -50,7 +50,7 @@ void _lv_refr_init(void);
 /**
  * Redraw the invalidated areas now.
  * Normally the redrawing is periodically executed in `lv_task_handler` but a long blocking process
- * can prevent the call of `lv_task_handler`. In this case if the the GUI is updated in the process
+ * can prevent the call of `lv_task_handler`. In this case if the GUI is updated in the process
  * (e.g. progress bar) this function can be called when the screen should be updated.
  * @param disp pointer to display to refresh. NULL to refresh all displays.
  */
diff --git a/src/lv_core/lv_style.c b/src/lv_core/lv_style.c
index 2ee6017c95..2e3dcec58b 100644
--- a/src/lv_core/lv_style.c
+++ b/src/lv_core/lv_style.c
@@ -93,7 +93,7 @@ void lv_style_copy(lv_style_t * style_dest, const lv_style_t * style_src)
 /**
  * Remove a property from a style
  * @param style pointer to a style
- * @param prop  a style property ORed with a state.
+ * @param prop a style property ORed with a state.
  * E.g. `LV_STYLE_BORDER_WIDTH | (LV_STATE_PRESSED << LV_STYLE_STATE_POS)`
  * @return true: the property was found and removed; false: the property wasn't found
  */
@@ -188,7 +188,7 @@ void lv_style_list_copy(lv_style_list_t * list_dest, const lv_style_list_t * lis
 
 /**
  * Add a style to a style list.
- * Only the the style pointer will be saved so the shouldn't be a local variable.
+ * Only the style pointer will be saved so the shouldn't be a local variable.
  * (It should be static, global or dynamically allocated)
  * @param list pointer to a style list
  * @param style pointer to a style to add
diff --git a/src/lv_core/lv_style.h b/src/lv_core/lv_style.h
index 6f62bb1b46..1ff7b3b4db 100644
--- a/src/lv_core/lv_style.h
+++ b/src/lv_core/lv_style.h
@@ -29,8 +29,8 @@ extern "C" {
 #define LV_RADIUS_CIRCLE (0x7FFF) /**< A very big radius to always draw as circle*/
 LV_EXPORT_CONST_INT(LV_RADIUS_CIRCLE);
 
-#define LV_DEBUG_STYLE_SENTINEL_VALUE       0x2288AAEE
-#define LV_DEBUG_STYLE_LIST_SENTINEL_VALUE  0x9977CCBB
+#define LV_DEBUG_STYLE_SENTINEL_VALUE      0x2288AAEE
+#define LV_DEBUG_STYLE_LIST_SENTINEL_VALUE 0x9977CCBB
 
 #define LV_STYLE_PROP_INIT(name, group, id, attr)  name = (((group << 4) + id) | ((attr) << 8))
 
@@ -287,7 +287,7 @@ void lv_style_list_copy(lv_style_list_t * list_dest, const lv_style_list_t * lis
 
 /**
  * Add a style to a style list.
- * Only the the style pointer will be saved so the shouldn't be a local variable.
+ * Only the style pointer will be saved so the shouldn't be a local variable.
  * (It should be static, global or dynamically allocated)
  * @param list pointer to a style list
  * @param style pointer to a style to add
@@ -338,7 +338,7 @@ void lv_style_copy(lv_style_t * dest, const lv_style_t * src);
 /**
  * Remove a property from a style
  * @param style pointer to a style
- * @param prop  a style property ORed with a state.
+ * @param prop a style property ORed with a state.
  * E.g. `LV_STYLE_BORDER_WIDTH | (LV_STATE_PRESSED << LV_STYLE_STATE_POS)`
  * @return true: the property was found and removed; false: the property wasn't found
  */
diff --git a/src/lv_draw/lv_draw_blend.c b/src/lv_draw/lv_draw_blend.c
index 71fd09e8dc..9634e08a40 100644
--- a/src/lv_draw/lv_draw_blend.c
+++ b/src/lv_draw/lv_draw_blend.c
@@ -191,7 +191,7 @@ LV_ATTRIBUTE_FAST_MEM void _lv_blend_fill(const lv_area_t * clip_area, const lv_
  * @param mask_res LV_MASK_RES_COVER: the mask has only 0xff values (no mask),
  *                 LV_MASK_RES_TRANSP: the mask has only 0x00 values (full transparent),
  *                 LV_MASK_RES_CHANGED: the mask has mixed values
- * @param opa  overall opacity in 0x00..0xff range
+ * @param opa overall opacity in 0x00..0xff range
  * @param mode blend mode from `lv_blend_mode_t`
  */
 LV_ATTRIBUTE_FAST_MEM void _lv_blend_map(const lv_area_t * clip_area, const lv_area_t * map_area,
diff --git a/src/lv_draw/lv_draw_img.c b/src/lv_draw/lv_draw_img.c
index 3a07bde4ac..a36df449ca 100644
--- a/src/lv_draw/lv_draw_img.c
+++ b/src/lv_draw/lv_draw_img.c
@@ -553,7 +553,7 @@ LV_ATTRIBUTE_FAST_MEM static void lv_draw_map(const lv_area_t * map_area, const
                             lv_opa_t px_opa = map_px[LV_IMG_PX_SIZE_ALPHA_BYTE - 1];
                             mask_buf[px_i] = px_opa;
                             if(px_opa == 0) {
-#if  LV_COLOR_DEPTH == 32
+#if LV_COLOR_DEPTH == 32
                                 map2[px_i].full = 0;
 #endif
                                 continue;
@@ -576,7 +576,7 @@ LV_ATTRIBUTE_FAST_MEM static void lv_draw_map(const lv_area_t * map_area, const
                         if(chroma_key) {
                             if(c.full == chroma_keyed_color.full) {
                                 mask_buf[px_i] = LV_OPA_TRANSP;
-#if  LV_COLOR_DEPTH == 32
+#if LV_COLOR_DEPTH == 32
                                 map2[px_i].full = 0;
 #endif
                                 continue;
diff --git a/src/lv_draw/lv_draw_label.c b/src/lv_draw/lv_draw_label.c
index 8fb92444c1..970791ffcb 100644
--- a/src/lv_draw/lv_draw_label.c
+++ b/src/lv_draw/lv_draw_label.c
@@ -411,7 +411,7 @@ LV_ATTRIBUTE_FAST_MEM static void lv_draw_letter(const lv_point_t * pos_p, const
     lv_font_glyph_dsc_t g;
     bool g_ret = lv_font_get_glyph_dsc(font_p, &g, letter, '\0');
     if(g_ret == false)  {
-        /* Add waring if the dsc is not found
+        /* Add warning if the dsc is not found
          * but do not print warning for non printable ASCII chars (e.g. '\n')*/
         if(letter >= 0x20) {
             LV_LOG_WARN("lv_draw_letter: glyph dsc. not found");
diff --git a/src/lv_draw/lv_draw_mask.c b/src/lv_draw/lv_draw_mask.c
index b74f2b4b25..7fb01ee01a 100644
--- a/src/lv_draw/lv_draw_mask.c
+++ b/src/lv_draw/lv_draw_mask.c
@@ -451,7 +451,7 @@ LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_line(lv_opa_t * mas
                     int32_t k = - abs_x;
                     if(k < 0) return LV_DRAW_MASK_RES_TRANSP;
                     if(k >= 0 && k < len) _lv_memset_00(&mask_buf[k], len - k);
-                    return  LV_DRAW_MASK_RES_CHANGED;
+                    return LV_DRAW_MASK_RES_CHANGED;
                 }
             }
             else {
@@ -461,7 +461,7 @@ LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_line(lv_opa_t * mas
                     if(k < 0) k = 0;
                     if(k >= len) return LV_DRAW_MASK_RES_TRANSP;
                     else if(k >= 0 && k < len) _lv_memset_00(&mask_buf[0], k);
-                    return  LV_DRAW_MASK_RES_CHANGED;
+                    return LV_DRAW_MASK_RES_CHANGED;
                 }
             }
         }
diff --git a/src/lv_draw/lv_draw_rect.c b/src/lv_draw/lv_draw_rect.c
index d81f1a6fa9..b502f8c439 100644
--- a/src/lv_draw/lv_draw_rect.c
+++ b/src/lv_draw/lv_draw_rect.c
@@ -1027,7 +1027,7 @@ LV_ATTRIBUTE_FAST_MEM static void shadow_draw_corner_buf(const lv_area_t * coord
             sh_ups_tmp_buf[0] = (mask_line[0] << SHADOW_UPSCALE_SHIFT) / sw;
             for(i = 1; i < size; i++) {
                 if(mask_line[i] == mask_line[i - 1]) sh_ups_tmp_buf[i] = sh_ups_tmp_buf[i - 1];
-                else  sh_ups_tmp_buf[i] = (mask_line[i] << SHADOW_UPSCALE_SHIFT) / sw;
+                else sh_ups_tmp_buf[i] = (mask_line[i] << SHADOW_UPSCALE_SHIFT) / sw;
             }
         }
 
@@ -1060,7 +1060,7 @@ LV_ATTRIBUTE_FAST_MEM static void shadow_draw_corner_buf(const lv_area_t * coord
         sh_buf[0] = (sh_buf[0] << SHADOW_UPSCALE_SHIFT) / sw;
         for(i = 1; i < (uint32_t) size * size; i++) {
             if(sh_buf[i] == sh_buf[i - 1]) sh_buf[i] = sh_buf[i - 1];
-            else  sh_buf[i] = (sh_buf[i] << SHADOW_UPSCALE_SHIFT) / sw;
+            else sh_buf[i] = (sh_buf[i] << SHADOW_UPSCALE_SHIFT) / sw;
         }
 
         shadow_blur_corner(size, sw, sh_buf);
@@ -1113,7 +1113,7 @@ LV_ATTRIBUTE_FAST_MEM static void shadow_blur_corner(lv_coord_t size, lv_coord_t
     sh_ups_buf[0] = sh_ups_buf[0] / sw;
     for(i = 1; i < (uint32_t)size * size; i++) {
         if(sh_ups_buf[i] == sh_ups_buf[i - 1]) sh_ups_buf[i] = sh_ups_buf[i - 1];
-        else  sh_ups_buf[i] = sh_ups_buf[i] / sw;
+        else sh_ups_buf[i] = sh_ups_buf[i] / sw;
     }
 
     for(x = 0; x < size; x++) {
diff --git a/src/lv_draw/lv_img_buf.h b/src/lv_draw/lv_img_buf.h
index 93974b9928..908b255e87 100644
--- a/src/lv_draw/lv_img_buf.h
+++ b/src/lv_draw/lv_img_buf.h
@@ -111,7 +111,7 @@ typedef uint8_t lv_img_cf_t;
 #if LV_BIG_ENDIAN_SYSTEM
 typedef struct {
 
-    uint32_t h : 11; /*Height of     the image map*/
+    uint32_t h : 11; /*Height of the image map*/
     uint32_t w : 11; /*Width of the image map*/
     uint32_t reserved : 2; /*Reserved to be used later*/
     uint32_t always_zero : 3; /*It the upper bits of the first byte. Always zero to look like a
@@ -129,7 +129,7 @@ typedef struct {
     uint32_t reserved : 2; /*Reserved to be used later*/
 
     uint32_t w : 11; /*Width of the image map*/
-    uint32_t h : 11; /*Height of     the image map*/
+    uint32_t h : 11; /*Height of the image map*/
 } lv_img_header_t;
 #endif
 
diff --git a/src/lv_font/lv_font.c b/src/lv_font/lv_font.c
index 6e6d0ea364..9e3ec2201c 100644
--- a/src/lv_font/lv_font.c
+++ b/src/lv_font/lv_font.c
@@ -43,7 +43,7 @@
  * Return with the bitmap of a font.
  * @param font_p pointer to a font
  * @param letter an UNICODE character code
- * @return  pointer to the bitmap of the letter
+ * @return pointer to the bitmap of the letter
  */
 const uint8_t * lv_font_get_glyph_bitmap(const lv_font_t * font_p, uint32_t letter)
 {
diff --git a/src/lv_font/lv_font.h b/src/lv_font/lv_font.h
index d8c69f3f78..04ab308649 100644
--- a/src/lv_font/lv_font.h
+++ b/src/lv_font/lv_font.h
@@ -55,7 +55,7 @@ typedef uint8_t lv_font_subpx_t;
 
 /** Describe the properties of a font*/
 typedef struct _lv_font_struct {
-    /** Get a glyph's  descriptor from a font*/
+    /** Get a glyph's descriptor from a font*/
     bool (*get_glyph_dsc)(const struct _lv_font_struct *, lv_font_glyph_dsc_t *, uint32_t letter, uint32_t letter_next);
 
     /** Get a glyph's bitmap from a font*/
@@ -67,7 +67,7 @@ typedef struct _lv_font_struct {
     uint8_t subpx  : 2;             /**< An element of `lv_font_subpx_t`*/
 
     int8_t underline_position;      /**< Distance between the top of the underline and base line (< 0 means below the base line)*/
-    int8_t  underline_thickness;     /**< Thickness of the underline*/
+    int8_t underline_thickness;     /**< Thickness of the underline*/
 
     void * dsc;                     /**< Store implementation specific or run_time data or caching here*/
 #if LV_USE_USER_DATA
@@ -84,7 +84,7 @@ typedef struct _lv_font_struct {
  * Return with the bitmap of a font.
  * @param font_p pointer to a font
  * @param letter an UNICODE character code
- * @return  pointer to the bitmap of the letter
+ * @return pointer to the bitmap of the letter
  */
 const uint8_t * lv_font_get_glyph_bitmap(const lv_font_t * font_p, uint32_t letter);
 
diff --git a/src/lv_font/lv_font_fmt_txt.h b/src/lv_font/lv_font_fmt_txt.h
index 99d5ec0aaf..1538c2fa69 100644
--- a/src/lv_font/lv_font_fmt_txt.h
+++ b/src/lv_font/lv_font_fmt_txt.h
@@ -115,7 +115,7 @@ typedef struct {
 typedef struct {
     /*To get a kern value of two code points:
        1. Get the `glyph_id_left` and `glyph_id_right` from `lv_font_fmt_txt_cmap_t
-       2  for(i = 0; i < pair_cnt * 2; i+2)
+       2. for(i = 0; i < pair_cnt * 2; i+2)
              if(gylph_ids[i] == glyph_id_left &&
                 gylph_ids[i+1] == glyph_id_right)
                  return values[i / 2];
@@ -130,7 +130,7 @@ typedef struct {
 typedef struct {
     /*To get a kern value of two code points:
           1. Get the `glyph_id_left` and `glyph_id_right` from `lv_font_fmt_txt_cmap_t
-          2  Get the class of the left and right glyphs as `left_class` and `right_class`
+          2. Get the class of the left and right glyphs as `left_class` and `right_class`
               left_class = left_class_mapping[glyph_id_left];
               right_class = right_class_mapping[glyph_id_right];
           3. value = class_pair_values[(left_class-1)*right_class_cnt + (right_class-1)]
diff --git a/src/lv_gpu/lv_gpu_nxp_pxp.c b/src/lv_gpu/lv_gpu_nxp_pxp.c
index c97b068d22..4e4d8ccfde 100644
--- a/src/lv_gpu/lv_gpu_nxp_pxp.c
+++ b/src/lv_gpu/lv_gpu_nxp_pxp.c
@@ -211,7 +211,7 @@ void lv_gpu_nxp_pxp_fill(lv_color_t * dest_buf, lv_coord_t dest_width, const lv_
  *
  * By default, image is copied directly, with optional opacity configured by \p opa.
  * Color keying can be enabled by calling lv_gpu_nxp_pxp_enable_color_key() before calling this function.
- * Recoloring can be enabled by calling  lv_gpu_nxp_pxp_enable_recolor() before calling this function.
+ * Recoloring can be enabled by calling lv_gpu_nxp_pxp_enable_recolor() before calling this function.
  * Note that color keying and recoloring at the same time is not supported and black rectangle is rendered.
  *
  * @param[in/out] dest destination buffer
diff --git a/src/lv_gpu/lv_gpu_nxp_pxp.h b/src/lv_gpu/lv_gpu_nxp_pxp.h
index e68d5a1b15..c91d80fd36 100644
--- a/src/lv_gpu/lv_gpu_nxp_pxp.h
+++ b/src/lv_gpu/lv_gpu_nxp_pxp.h
@@ -131,7 +131,7 @@ void lv_gpu_nxp_pxp_fill(lv_color_t * dest_buf, lv_coord_t dest_width, const lv_
  *
  * By default, image is copied directly, with optional opacity configured by \p opa.
  * Color keying can be enabled by calling lv_gpu_nxp_pxp_enable_color_key() before calling this function.
- * Recoloring can be enabled by calling  lv_gpu_nxp_pxp_enable_recolor() before calling this function.
+ * Recoloring can be enabled by calling lv_gpu_nxp_pxp_enable_recolor() before calling this function.
  * Note that color keying and recoloring at the same time is not supported and black rectangle is rendered.
  *
  * @param[in/out] dest destination buffer
diff --git a/src/lv_gpu/lv_gpu_stm32_dma2d.c b/src/lv_gpu/lv_gpu_stm32_dma2d.c
index d94e87abfa..21fb3001e9 100644
--- a/src/lv_gpu/lv_gpu_stm32_dma2d.c
+++ b/src/lv_gpu/lv_gpu_stm32_dma2d.c
@@ -65,7 +65,7 @@ void lv_gpu_stm32_dma2d_init(void)
     /* Enable DMA2D clock */
 #if defined(STM32F4) || defined(STM32F7)
     RCC->AHB1ENR |= RCC_AHB1ENR_DMA2DEN;
-#elif  defined(STM32H7)
+#elif defined(STM32H7)
     RCC->AHB3ENR |= RCC_AHB3ENR_DMA2DEN;
 #else
 # warning "LVGL can't enable the clock of DMA2D"
diff --git a/src/lv_hal/lv_hal_disp.h b/src/lv_hal/lv_hal_disp.h
index cd77c30379..5eba4e2664 100644
--- a/src/lv_hal/lv_hal_disp.h
+++ b/src/lv_hal/lv_hal_disp.h
@@ -78,7 +78,7 @@ typedef struct _disp_drv_t {
     uint32_t rotated : 1; /**< 1: turn the display by 90 degree. @warning Does not update coordinates for you!*/
 
 #if LV_COLOR_SCREEN_TRANSP
-    /**Handle if the the screen doesn't have a solid (opa == LV_OPA_COVER) background.
+    /**Handle if the screen doesn't have a solid (opa == LV_OPA_COVER) background.
      * Use only if required because it's slower.*/
     uint32_t screen_transp : 1;
 #endif
diff --git a/src/lv_hal/lv_hal_indev.c b/src/lv_hal/lv_hal_indev.c
index 2c088f7e43..aa706684bd 100644
--- a/src/lv_hal/lv_hal_indev.c
+++ b/src/lv_hal/lv_hal_indev.c
@@ -135,7 +135,7 @@ bool _lv_indev_read(lv_indev_t * indev, lv_indev_data_t * data)
         data->point.x = indev->proc.types.pointer.act_point.x;
         data->point.y = indev->proc.types.pointer.act_point.y;
     }
-    /*Similarly set at least the last key in case of the  the user doesn't set it  on release*/
+    /*Similarly set at least the last key in case of the user doesn't set it on release*/
     else if(indev->driver.type == LV_INDEV_TYPE_KEYPAD) {
         data->key = indev->proc.types.keypad.last_key;
     }
diff --git a/src/lv_misc/lv_anim.c b/src/lv_misc/lv_anim.c
index e22487aa5e..4b01b80516 100644
--- a/src/lv_misc/lv_anim.c
+++ b/src/lv_misc/lv_anim.c
@@ -88,7 +88,7 @@ void lv_anim_init(lv_anim_t * a)
 void lv_anim_start(lv_anim_t * a)
 {
     LV_LOG_TRACE("animation create started")
-    /* Do not let two animations for the  same 'var' with the same 'fp'*/
+    /* Do not let two animations for the same 'var' with the same 'fp'*/
     if(a->exec_cb != NULL) lv_anim_del(a->var, a->exec_cb); /*fp == NULL would delete all animations of var*/
 
     /*If the list is empty the anim task was suspended and it's last run measure is invalid*/
@@ -456,7 +456,7 @@ static void anim_task(lv_task_t * param)
         anim_list_changed = false;
 
         if(!a->has_run) {
-            a->has_run = 1; /*The list readying might be reseted so need to know which anim has run already*/
+            a->has_run = 1; /*The list readying might be reset so need to know which anim has run already*/
 
             /*The animation will run now for the first time. Call `start_cb`*/
             int32_t new_act_time = a->act_time + elaps;
diff --git a/src/lv_misc/lv_bidi.c b/src/lv_misc/lv_bidi.c
index ea1ab33540..caa463a8c6 100644
--- a/src/lv_misc/lv_bidi.c
+++ b/src/lv_misc/lv_bidi.c
@@ -131,7 +131,7 @@ lv_bidi_dir_t _lv_bidi_detect_base_dir(const char * txt)
  * @param len length of the line in character count
  * @param base_dir base direction of the text: `LV_BIDI_DIR_LTR` or `LV_BIDI_DIR_RTL`
  * @param visual_pos the visual character position which logical position should be get
- * @param is_rtl tell the the char at `visual_pos` is RTL or LTR context
+ * @param is_rtl tell the char at `visual_pos` is RTL or LTR context
  * @return the logical character position
  */
 uint16_t _lv_bidi_get_logical_pos(const char * str_in, char ** bidi_txt, uint32_t len, lv_bidi_dir_t base_dir,
@@ -168,7 +168,7 @@ uint16_t _lv_bidi_get_logical_pos(const char * str_in, char ** bidi_txt, uint32_
  * @param len length of the line in character count
  * @param base_dir base direction of the text: `LV_BIDI_DIR_LTR` or `LV_BIDI_DIR_RTL`
  * @param logical_pos the logical character position which visual position should be get
- * @param is_rtl tell the the char at `logical_pos` is RTL or LTR context
+ * @param is_rtl tell the char at `logical_pos` is RTL or LTR context
  * @return the visual character position
  */
 uint16_t _lv_bidi_get_visual_pos(const char * str_in, char ** bidi_txt, uint16_t len, lv_bidi_dir_t base_dir,
diff --git a/src/lv_misc/lv_bidi.h b/src/lv_misc/lv_bidi.h
index fd98009e5c..8b2f765dbb 100644
--- a/src/lv_misc/lv_bidi.h
+++ b/src/lv_misc/lv_bidi.h
@@ -21,7 +21,7 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
-/* Special non printable  strong characters.
+/* Special non printable strong characters.
  * They can be inserted to texts to affect the run's direction*/
 #define LV_BIDI_LRO  "\xE2\x80\xAD" /*U+202D*/
 #define LV_BIDI_RLO  "\xE2\x80\xAE" /*U+202E*/
@@ -72,7 +72,7 @@ lv_bidi_dir_t _lv_bidi_detect_base_dir(const char * txt);
  * @param len length of the line in character count
  * @param base_dir base direction of the text: `LV_BIDI_DIR_LTR` or `LV_BIDI_DIR_RTL`
  * @param visual_pos the visual character position which logical position should be get
- * @param is_rtl tell the the char at `visual_pos` is RTL or LTR context
+ * @param is_rtl tell the char at `visual_pos` is RTL or LTR context
  * @return the logical character position
  */
 uint16_t _lv_bidi_get_logical_pos(const char * str_in, char ** bidi_txt, uint32_t len, lv_bidi_dir_t base_dir,
@@ -87,7 +87,7 @@ uint16_t _lv_bidi_get_logical_pos(const char * str_in, char ** bidi_txt, uint32_
  * @param len length of the line in character count
  * @param base_dir base direction of the text: `LV_BIDI_DIR_LTR` or `LV_BIDI_DIR_RTL`
  * @param logical_pos the logical character position which visual position should be get
- * @param is_rtl tell the the char at `logical_pos` is RTL or LTR context
+ * @param is_rtl tell the char at `logical_pos` is RTL or LTR context
  * @return the visual character position
  */
 uint16_t _lv_bidi_get_visual_pos(const char * str_in, char ** bidi_txt, uint16_t len, lv_bidi_dir_t base_dir,
diff --git a/src/lv_misc/lv_color.h b/src/lv_misc/lv_color.h
index 74bd5256c0..d0271b0d30 100644
--- a/src/lv_misc/lv_color.h
+++ b/src/lv_misc/lv_color.h
@@ -104,7 +104,7 @@ enum {
 #endif
 
 /*---------------------------------------
- * Macros for all existing  color depths
+ * Macros for all existing color depths
  * to set/get values of the color channels
  *------------------------------------------*/
 # define LV_COLOR_SET_R1(c, v) (c).ch.red = (uint8_t)((v) & 0x1)
diff --git a/src/lv_misc/lv_debug.c b/src/lv_misc/lv_debug.c
index fd5bd86b5c..24fc78ff0f 100644
--- a/src/lv_misc/lv_debug.c
+++ b/src/lv_misc/lv_debug.c
@@ -17,11 +17,11 @@
  *      DEFINES
  *********************/
 #ifndef LV_DEBUG_STR_MAX_LENGTH
-    #define LV_DEBUG_STR_MAX_LENGTH  (1024 * 8)
+    #define LV_DEBUG_STR_MAX_LENGTH (1024 * 8)
 #endif
 
 #ifndef LV_DEBUG_STR_MAX_REPEAT
-    #define LV_DEBUG_STR_MAX_REPEAT  8
+    #define LV_DEBUG_STR_MAX_REPEAT 8
 #endif
 /**********************
  *      TYPEDEFS
diff --git a/src/lv_misc/lv_fs.c b/src/lv_misc/lv_fs.c
index 772f1468b4..8be49028e2 100644
--- a/src/lv_misc/lv_fs.c
+++ b/src/lv_misc/lv_fs.c
@@ -134,7 +134,7 @@ lv_fs_res_t lv_fs_open(lv_fs_file_t * file_p, const char * path, lv_fs_mode_t mo
 /**
  * Close an already opened file
  * @param file_p pointer to a lv_fs_file_t variable
- * @return  LV_FS_RES_OK or any error from lv_fs_res_t enum
+ * @return LV_FS_RES_OK or any error from lv_fs_res_t enum
  */
 lv_fs_res_t lv_fs_close(lv_fs_file_t * file_p)
 {
@@ -158,7 +158,7 @@ lv_fs_res_t lv_fs_close(lv_fs_file_t * file_p)
 /**
  * Delete a file
  * @param path path of the file to delete
- * @return  LV_FS_RES_OK or any error from lv_fs_res_t enum
+ * @return LV_FS_RES_OK or any error from lv_fs_res_t enum
  */
 lv_fs_res_t lv_fs_remove(const char * path)
 {
diff --git a/src/lv_misc/lv_fs.h b/src/lv_misc/lv_fs.h
index 2a8e5fcbba..633606ed04 100644
--- a/src/lv_misc/lv_fs.h
+++ b/src/lv_misc/lv_fs.h
@@ -148,14 +148,14 @@ lv_fs_res_t lv_fs_open(lv_fs_file_t * file_p, const char * path, lv_fs_mode_t mo
 /**
  * Close an already opened file
  * @param file_p pointer to a lv_fs_file_t variable
- * @return  LV_FS_RES_OK or any error from lv_fs_res_t enum
+ * @return LV_FS_RES_OK or any error from lv_fs_res_t enum
  */
 lv_fs_res_t lv_fs_close(lv_fs_file_t * file_p);
 
 /**
  * Delete a file
  * @param path path of the file to delete
- * @return  LV_FS_RES_OK or any error from lv_fs_res_t enum
+ * @return LV_FS_RES_OK or any error from lv_fs_res_t enum
  */
 lv_fs_res_t lv_fs_remove(const char * path);
 
diff --git a/src/lv_misc/lv_ll.c b/src/lv_misc/lv_ll.c
index 9f25b8f7f9..560136826d 100644
--- a/src/lv_misc/lv_ll.c
+++ b/src/lv_misc/lv_ll.c
@@ -150,7 +150,7 @@ void * _lv_ll_ins_tail(lv_ll_t * ll_p)
 
 /**
  * Remove the node 'node_p' from 'll_p' linked list.
- * It does not free the the memory of node.
+ * It does not free the memory of node.
  * @param ll_p pointer to the linked list of 'node_p'
  * @param node_p pointer to node in 'll_p' linked list
  */
@@ -167,7 +167,7 @@ void _lv_ll_remove(lv_ll_t * ll_p, void * node_p)
         }
     }
     else if(_lv_ll_get_tail(ll_p) == node_p) {
-        /*The new tail will be the  node before 'n_act'*/
+        /*The new tail will be the node before 'n_act'*/
         ll_p->tail = _lv_ll_get_prev(ll_p, node_p);
         if(ll_p->tail == NULL) {
             ll_p->head = NULL;
diff --git a/src/lv_misc/lv_ll.h b/src/lv_misc/lv_ll.h
index a4ce8c64ce..9ccc11009a 100644
--- a/src/lv_misc/lv_ll.h
+++ b/src/lv_misc/lv_ll.h
@@ -71,7 +71,7 @@ void * _lv_ll_ins_tail(lv_ll_t * ll_p);
 
 /**
  * Remove the node 'node_p' from 'll_p' linked list.
- * It does not free the the memory of node.
+ * It does not free the memory of node.
  * @param ll_p pointer to the linked list of 'node_p'
  * @param node_p pointer to node in 'll_p' linked list
  */
diff --git a/src/lv_misc/lv_log.h b/src/lv_misc/lv_log.h
index 99633a8a26..fe46cf4493 100644
--- a/src/lv_misc/lv_log.h
+++ b/src/lv_misc/lv_log.h
@@ -108,7 +108,7 @@ void _lv_log_add(lv_log_level_t level, const char * file, int line, const char *
 
 #else /*LV_USE_LOG*/
 
-/*Do nothing if `LV_USE_LOG  0`*/
+/*Do nothing if `LV_USE_LOG 0`*/
 #define _lv_log_add(level, file, line, ...)
 #define LV_LOG_TRACE(...)
 #define LV_LOG_INFO(...)
diff --git a/src/lv_misc/lv_mem.c b/src/lv_misc/lv_mem.c
index 0bcda313c7..7a7f9e8c89 100644
--- a/src/lv_misc/lv_mem.c
+++ b/src/lv_misc/lv_mem.c
@@ -57,9 +57,9 @@ typedef struct {
 #endif /* LV_ENABLE_GC */
 
 #ifdef LV_ARCH_64
-    #define ALIGN_MASK  0x7
+    #define ALIGN_MASK 0x7
 #else
-    #define ALIGN_MASK  0x3
+    #define ALIGN_MASK 0x3
 #endif
 
 #define MEM_BUF_SMALL_SIZE 16
diff --git a/src/lv_misc/lv_printf.c b/src/lv_misc/lv_printf.c
index 525788f5b0..bb6f3430bb 100644
--- a/src/lv_misc/lv_printf.c
+++ b/src/lv_misc/lv_printf.c
@@ -68,13 +68,13 @@
 // define the default floating point precision
 // default: 6 digits
 #ifndef PRINTF_DEFAULT_FLOAT_PRECISION
-    #define PRINTF_DEFAULT_FLOAT_PRECISION  6U
+    #define PRINTF_DEFAULT_FLOAT_PRECISION 6U
 #endif
 
 // define the largest float suitable to print with %f
 // default: 1e9
 #ifndef PRINTF_MAX_FLOAT
-    #define PRINTF_MAX_FLOAT  1e9
+    #define PRINTF_MAX_FLOAT 1e9
 #endif
 
 // support for the long long types (%llu or %p)
diff --git a/src/lv_misc/lv_task.c b/src/lv_misc/lv_task.c
index 2c2223f5cc..c54c418177 100644
--- a/src/lv_misc/lv_task.c
+++ b/src/lv_misc/lv_task.c
@@ -60,7 +60,7 @@ void _lv_task_core_init(void)
 }
 
 /**
- * Call it  periodically to handle lv_tasks.
+ * Call it periodically to handle lv_tasks.
  * @return the time after which it must be called again
  */
 LV_ATTRIBUTE_TASK_HANDLER uint32_t lv_task_handler(void)
diff --git a/src/lv_misc/lv_task.h b/src/lv_misc/lv_task.h
index d3dfc4adba..f9546ab63f 100644
--- a/src/lv_misc/lv_task.h
+++ b/src/lv_misc/lv_task.h
@@ -80,7 +80,7 @@ void _lv_task_core_init(void);
 //! @cond Doxygen_Suppress
 
 /**
- * Call it  periodically to handle lv_tasks.
+ * Call it periodically to handle lv_tasks.
  * @return time till it needs to be run next (in ms)
  */
 LV_ATTRIBUTE_TASK_HANDLER uint32_t lv_task_handler(void);
@@ -154,7 +154,7 @@ void lv_task_set_repeat_count(lv_task_t * task, int32_t repeat_count);
 void lv_task_reset(lv_task_t * task);
 
 /**
- * Enable or disable the whole  lv_task handling
+ * Enable or disable the whole lv_task handling
  * @param en: true: lv_task handling is running, false: lv_task handling is suspended
  */
 void lv_task_enable(bool en);
diff --git a/src/lv_misc/lv_txt.c b/src/lv_misc/lv_txt.c
index 0521aab3af..fcb9a7d229 100644
--- a/src/lv_misc/lv_txt.c
+++ b/src/lv_misc/lv_txt.c
@@ -121,7 +121,7 @@ void _lv_txt_get_size(lv_point_t * size_res, const char * text, const lv_font_t
             size_res->y += line_space;
         }
 
-        /*Calculate the the longest line*/
+        /*Calculate the longest line*/
         lv_coord_t act_line_length = _lv_txt_get_width(&text[line_start], new_line_start - line_start, font, letter_space,
                                                        flag);
 
@@ -225,7 +225,7 @@ static uint32_t lv_txt_get_next_word(const char * txt, const lv_font_t * font,
         /*Check for new line chars and breakchars*/
         if(letter == '\n' || letter == '\r' || is_break_char(letter)) {
             /* Update the output width on the first character if it fits.
-             * Must do this here incase first letter is a break character. */
+             * Must do this here in case first letter is a break character. */
             if(i == 0 && break_index == NO_BREAK_FOUND && word_w_ptr != NULL) *word_w_ptr = cur_w;
             word_len--;
             break;
@@ -581,7 +581,7 @@ static uint32_t lv_txt_unicode_to_utf8(uint32_t letter_uni)
 
 /**
  * Convert a wide character, e.g. 'Á' little endian to be UTF-8 compatible
- * @param c a wide character or a  Little endian number
+ * @param c a wide character or a Little endian number
  * @return `c` in big endian
  */
 static uint32_t lv_txt_utf8_conv_wc(uint32_t c)
diff --git a/src/lv_misc/lv_txt_ap.c b/src/lv_misc/lv_txt_ap.c
index 673babeeec..6bd7124ac8 100644
--- a/src/lv_misc/lv_txt_ap.c
+++ b/src/lv_misc/lv_txt_ap.c
@@ -114,7 +114,7 @@ uint32_t _lv_txt_ap_calc_bytes_cnt(const char * txt)
             chars_cnt++;
         else if(ch_enc < 0x0800)
             chars_cnt += 2;
-        else  if(ch_enc < 0x010000)
+        else if(ch_enc < 0x010000)
             chars_cnt += 3;
         else
             chars_cnt += 4;
@@ -210,7 +210,7 @@ static uint32_t lv_ap_get_char_index(uint16_t c)
         if(c == (ap_chars_map[i].char_offset + LV_AP_ALPHABET_BASE_CODE))
             return i;
         else if(c == ap_chars_map[i].char_end_form                                                  //is it an End form
-                || c == (ap_chars_map[i].char_end_form + ap_chars_map[i].char_begining_form_offset)     //is it a Begining form
+                || c == (ap_chars_map[i].char_end_form + ap_chars_map[i].char_begining_form_offset)     //is it a Beginning form
                 || c == (ap_chars_map[i].char_end_form + ap_chars_map[i].char_middle_form_offset)       //is it a middle form
                 || c == (ap_chars_map[i].char_end_form + ap_chars_map[i].char_isolated_form_offset)) {  //is it an isolated form
             return i;
diff --git a/src/lv_themes/lv_theme_material.c b/src/lv_themes/lv_theme_material.c
index 6b71dc9f2d..129ac6693e 100644
--- a/src/lv_themes/lv_theme_material.c
+++ b/src/lv_themes/lv_theme_material.c
@@ -680,7 +680,7 @@ static void page_init(void)
     lv_style_set_pad_right(&styles->sb, LV_STATE_DEFAULT,  LV_DPX(7));
     lv_style_set_pad_bottom(&styles->sb, LV_STATE_DEFAULT,  LV_DPX(7));
 
-#if  LV_USE_ANIMATION
+#if LV_USE_ANIMATION
     style_init_reset(&styles->edge_flash);
     lv_style_set_bg_opa(&styles->edge_flash, LV_STATE_DEFAULT, LV_OPA_COVER);
     lv_style_set_bg_color(&styles->edge_flash, LV_STATE_DEFAULT,  lv_color_hex3(0x888));
diff --git a/src/lv_widgets/lv_arc.c b/src/lv_widgets/lv_arc.c
index 50b5ba248c..f78c8606c3 100644
--- a/src/lv_widgets/lv_arc.c
+++ b/src/lv_widgets/lv_arc.c
@@ -173,7 +173,7 @@ void lv_arc_set_start_angle(lv_obj_t * arc, uint16_t start)
                      LV_ARC_PART_INDIC);
     }
     /*Only a smaller incremental move*/
-    else  if(ext->arc_angle_start < ext->arc_angle_end && start < ext->arc_angle_end) {
+    else if(ext->arc_angle_start < ext->arc_angle_end && start < ext->arc_angle_end) {
         inv_arc_area(arc, LV_MATH_MIN(ext->arc_angle_start, start), LV_MATH_MAX(ext->arc_angle_start, start),
                      LV_ARC_PART_INDIC);
     }
@@ -207,7 +207,7 @@ void lv_arc_set_end_angle(lv_obj_t * arc, uint16_t end)
         inv_arc_area(arc, LV_MATH_MIN(ext->arc_angle_end, end), LV_MATH_MAX(ext->arc_angle_end, end), LV_ARC_PART_INDIC);
     }
     /*Only a smaller incremental move*/
-    else  if(ext->arc_angle_end < ext->arc_angle_start && end < ext->arc_angle_start) {
+    else if(ext->arc_angle_end < ext->arc_angle_start && end < ext->arc_angle_start) {
         inv_arc_area(arc, LV_MATH_MIN(ext->arc_angle_end, end), LV_MATH_MAX(ext->arc_angle_end, end), LV_ARC_PART_INDIC);
     }
     /*Crossing the end angle makes the whole arc change*/
@@ -263,7 +263,7 @@ void lv_arc_set_bg_start_angle(lv_obj_t * arc, uint16_t start)
         inv_arc_area(arc, LV_MATH_MIN(ext->bg_angle_start, start), LV_MATH_MAX(ext->bg_angle_start, start), LV_ARC_PART_BG);
     }
     /*Only a smaller incremental move*/
-    else  if(ext->bg_angle_start < ext->bg_angle_end && start < ext->bg_angle_end) {
+    else if(ext->bg_angle_start < ext->bg_angle_end && start < ext->bg_angle_end) {
         inv_arc_area(arc, LV_MATH_MIN(ext->bg_angle_start, start), LV_MATH_MAX(ext->bg_angle_start, start), LV_ARC_PART_BG);
     }
     /*Crossing the start angle makes the whole arc change*/
@@ -298,7 +298,7 @@ void lv_arc_set_bg_end_angle(lv_obj_t * arc, uint16_t end)
         inv_arc_area(arc, LV_MATH_MIN(ext->bg_angle_end, end), LV_MATH_MAX(ext->bg_angle_end, end), LV_ARC_PART_BG);
     }
     /*Only a smaller incremental move*/
-    else  if(ext->bg_angle_end < ext->bg_angle_start && end < ext->bg_angle_start) {
+    else if(ext->bg_angle_end < ext->bg_angle_start && end < ext->bg_angle_start) {
         inv_arc_area(arc, LV_MATH_MIN(ext->bg_angle_end, end), LV_MATH_MAX(ext->bg_angle_end, end), LV_ARC_PART_BG);
     }
     /*Crossing the end angle makes the whole arc change*/
diff --git a/src/lv_widgets/lv_bar.c b/src/lv_widgets/lv_bar.c
index 5545f1019f..1b18b54c29 100644
--- a/src/lv_widgets/lv_bar.c
+++ b/src/lv_widgets/lv_bar.c
@@ -23,7 +23,7 @@
  *********************/
 #define LV_OBJX_NAME "lv_bar"
 
-#define LV_BAR_SIZE_MIN  4   /*hor. pad and ver. pad cannot make the indicator smaller then this [px]*/
+#define LV_BAR_SIZE_MIN 4 /*hor. pad and ver. pad cannot make the indicator smaller then this [px]*/
 
 #if LV_USE_ANIMATION
     #define LV_BAR_IS_ANIMATING(anim_struct) (((anim_struct).anim_state) != LV_BAR_ANIM_STATE_INV)
@@ -109,7 +109,7 @@ lv_obj_t * lv_bar_create(lv_obj_t * par, const lv_obj_t * copy)
     lv_obj_set_signal_cb(bar, lv_bar_signal);
     lv_obj_set_design_cb(bar, lv_bar_design);
 
-    /*Init the new  bar object*/
+    /*Init the new bar object*/
     if(copy == NULL) {
 
         lv_obj_set_click(bar, false);
diff --git a/src/lv_widgets/lv_btn.h b/src/lv_widgets/lv_btn.h
index 34f72f6365..84d1848ba4 100644
--- a/src/lv_widgets/lv_btn.h
+++ b/src/lv_widgets/lv_btn.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_CONT == 0
-#error "lv_btn: lv_cont is required. Enable it in lv_conf.h (LV_USE_CONT  1) "
+#error "lv_btn: lv_cont is required. Enable it in lv_conf.h (LV_USE_CONT 1)"
 #endif
 
 #include "lv_cont.h"
diff --git a/src/lv_widgets/lv_btnmatrix.c b/src/lv_widgets/lv_btnmatrix.c
index 783fc96ed7..aa03242027 100644
--- a/src/lv_widgets/lv_btnmatrix.c
+++ b/src/lv_widgets/lv_btnmatrix.c
@@ -268,7 +268,7 @@ void lv_btnmatrix_set_map(lv_obj_t * btnm, const char * map[])
  *                 the number and order of the individual buttons (i.e. excludes
  *                 newline entries).
  *                 An element of the map should look like e.g.:
- *                 `ctrl_map[0] = width | LV_BTNMATRIX_CTRL_NO_REPEAT |  LV_BTNMATRIX_CTRL_TGL_ENABLE`
+ *                 `ctrl_map[0] = width | LV_BTNMATRIX_CTRL_NO_REPEAT | LV_BTNMATRIX_CTRL_TGL_ENABLE`
  */
 void lv_btnmatrix_set_ctrl_map(lv_obj_t * btnm, const lv_btnmatrix_ctrl_t ctrl_map[])
 {
@@ -476,9 +476,9 @@ bool lv_btnmatrix_get_recolor(const lv_obj_t * btnm)
 
 /**
  * Get the index of the lastly "activated" button by the user (pressed, released etc)
- * Useful in the the `event_cb` to get the text of the button, check if hidden etc.
+ * Useful in the `event_cb` to get the text of the button, check if hidden etc.
  * @param btnm pointer to button matrix object
- * @return  index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset)
+ * @return index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset)
  */
 uint16_t lv_btnmatrix_get_active_btn(const lv_obj_t * btnm)
 {
@@ -490,7 +490,7 @@ uint16_t lv_btnmatrix_get_active_btn(const lv_obj_t * btnm)
 
 /**
  * Get the text of the lastly "activated" button by the user (pressed, released etc)
- * Useful in the the `event_cb`
+ * Useful in the `event_cb`
  * @param btnm pointer to button matrix object
  * @return text of the last released button (NULL: if unset)
  */
@@ -511,7 +511,7 @@ const char * lv_btnmatrix_get_active_btn_text(const lv_obj_t * btnm)
  * Get the pressed button's index.
  * The button be really pressed by the user or manually set to pressed with `lv_btnmatrix_set_pressed`
  * @param btnm pointer to button matrix object
- * @return  index of the pressed button (LV_BTNMATRIX_BTN_NONE: if unset)
+ * @return index of the pressed button (LV_BTNMATRIX_BTN_NONE: if unset)
  */
 uint16_t lv_btnmatrix_get_focused_btn(const lv_obj_t * btnm)
 {
@@ -526,7 +526,7 @@ uint16_t lv_btnmatrix_get_focused_btn(const lv_obj_t * btnm)
  * @param btnm pointer to button matrix object
  * @param btn_id the index a button not counting new line characters. (The return value of
  * lv_btnmatrix_get_pressed/released)
- * @return  text of btn_index` button
+ * @return text of btn_index` button
  */
 const char * lv_btnmatrix_get_btn_text(const lv_obj_t * btnm, uint16_t btn_id)
 {
@@ -1037,7 +1037,7 @@ static lv_res_t lv_btnmatrix_signal(lv_obj_t * btnm, lv_signal_t sign, void * pa
         }
         else if(c == LV_KEY_DOWN) {
             lv_style_int_t pad_inner = lv_obj_get_style_pad_inner(btnm, LV_BTNMATRIX_PART_BG);
-            /*Find the area below the the current*/
+            /*Find the area below the current*/
             if(ext->btn_id_focused == LV_BTNMATRIX_BTN_NONE) {
                 ext->btn_id_focused = 0;
             }
@@ -1063,7 +1063,7 @@ static lv_res_t lv_btnmatrix_signal(lv_obj_t * btnm, lv_signal_t sign, void * pa
         }
         else if(c == LV_KEY_UP) {
             lv_style_int_t pad_inner = lv_obj_get_style_pad_inner(btnm, LV_BTNMATRIX_PART_BG);
-            /*Find the area below the the current*/
+            /*Find the area below the current*/
             if(ext->btn_id_focused == LV_BTNMATRIX_BTN_NONE) {
                 ext->btn_id_focused = 0;
             }
diff --git a/src/lv_widgets/lv_btnmatrix.h b/src/lv_widgets/lv_btnmatrix.h
index 4fa0f849c3..a47e824016 100644
--- a/src/lv_widgets/lv_btnmatrix.h
+++ b/src/lv_widgets/lv_btnmatrix.h
@@ -104,7 +104,7 @@ void lv_btnmatrix_set_map(lv_obj_t * btnm, const char * map[]);
  *                 the number and order of the individual buttons (i.e. excludes
  *                 newline entries).
  *                 An element of the map should look like e.g.:
- *                 `ctrl_map[0] = width | LV_BTNMATRIX_CTRL_NO_REPEAT |  LV_BTNMATRIX_CTRL_TGL_ENABLE`
+ *                 `ctrl_map[0] = width | LV_BTNMATRIX_CTRL_NO_REPEAT | LV_BTNMATRIX_CTRL_TGL_ENABLE`
  */
 void lv_btnmatrix_set_ctrl_map(lv_obj_t * btnm, const lv_btnmatrix_ctrl_t ctrl_map[]);
 
@@ -198,15 +198,15 @@ bool lv_btnmatrix_get_recolor(const lv_obj_t * btnm);
 
 /**
  * Get the index of the lastly "activated" button by the user (pressed, released etc)
- * Useful in the the `event_cb` to get the text of the button, check if hidden etc.
+ * Useful in the `event_cb` to get the text of the button, check if hidden etc.
  * @param btnm pointer to button matrix object
- * @return  index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset)
+ * @return index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset)
  */
 uint16_t lv_btnmatrix_get_active_btn(const lv_obj_t * btnm);
 
 /**
  * Get the text of the lastly "activated" button by the user (pressed, released etc)
- * Useful in the the `event_cb`
+ * Useful in the `event_cb`
  * @param btnm pointer to button matrix object
  * @return text of the last released button (NULL: if unset)
  */
@@ -215,7 +215,7 @@ const char * lv_btnmatrix_get_active_btn_text(const lv_obj_t * btnm);
 /**
  * Get the focused button's index.
  * @param btnm pointer to button matrix object
- * @return  index of the focused button (LV_BTNMATRIX_BTN_NONE: if unset)
+ * @return index of the focused button (LV_BTNMATRIX_BTN_NONE: if unset)
  */
 uint16_t lv_btnmatrix_get_focused_btn(const lv_obj_t * btnm);
 
@@ -224,7 +224,7 @@ uint16_t lv_btnmatrix_get_focused_btn(const lv_obj_t * btnm);
  * @param btnm pointer to button matrix object
  * @param btn_id the index a button not counting new line characters. (The return value of
  * lv_btnmatrix_get_pressed/released)
- * @return  text of btn_index` button
+ * @return text of btn_index` button
  */
 const char * lv_btnmatrix_get_btn_text(const lv_obj_t * btnm, uint16_t btn_id);
 
@@ -247,7 +247,7 @@ bool lv_btnmatrix_get_one_check(const lv_obj_t * btnm);
 
 /**
  * Get the align attribute
- * @param  btnm pointer to a btnmatrix object
+ * @param btnm pointer to a btnmatrix object
  * @return LV_LABEL_ALIGN_LEFT, LV_LABEL_ALIGN_RIGHT or LV_LABEL_ALIGN_CENTER
  */
 lv_label_align_t lv_btnmatrix_get_align(const lv_obj_t * btnm);
diff --git a/src/lv_widgets/lv_calendar.c b/src/lv_widgets/lv_calendar.c
index 9346ca6534..c1643a8562 100644
--- a/src/lv_widgets/lv_calendar.c
+++ b/src/lv_widgets/lv_calendar.c
@@ -215,7 +215,7 @@ void lv_calendar_set_showed_date(lv_obj_t * calendar, lv_calendar_date_t * showe
 }
 
 /**
- * Set the the highlighted dates
+ * Set the highlighted dates
  * @param calendar pointer to a calendar object
  * @param highlighted pointer to an `lv_calendar_date_t` array containing the dates. ONLY A POINTER
  * WILL BE SAVED! CAN'T BE LOCAL ARRAY.
@@ -298,7 +298,7 @@ lv_calendar_date_t * lv_calendar_get_showed_date(const lv_obj_t * calendar)
 }
 
 /**
- * Get the the pressed date.
+ * Get the pressed date.
  * @param calendar pointer to a calendar object
  * @return pointer to an `lv_calendar_date_t` variable containing the pressed date.
  * `NULL` if not date pressed (e.g. the header)
@@ -312,7 +312,7 @@ lv_calendar_date_t * lv_calendar_get_pressed_date(const lv_obj_t * calendar)
 }
 
 /**
- * Get the the highlighted dates
+ * Get the highlighted dates
  * @param calendar pointer to a calendar object
  * @return pointer to an `lv_calendar_date_t` array containing the dates.
  */
@@ -366,7 +366,7 @@ const char ** lv_calendar_get_month_names(const lv_obj_t * calendar)
 /**
  * Get the day of the week
  * @param year a year
- * @param month a  month (1..12)
+ * @param month a month (1..12)
  * @param day a day (1..31)
  * @return [0..6] which means [Sun..Sat] or [Mon..Sun] depending on LV_CALENDAR_WEEK_STARTS_MONDAY
  */
@@ -960,7 +960,7 @@ static void draw_dates(lv_obj_t * calendar, const lv_area_t * clip_area)
  * @param calendar pointer to a calendar object
  * @param draw_state which month is drawn (previous, active, next)
  * @param year a year
- * @param month a  month [1..12]
+ * @param month a month [1..12]
  * @param day a day [1..31]
  * @return true: highlighted
  */
@@ -993,7 +993,7 @@ static bool is_highlighted(lv_obj_t * calendar, day_draw_state_t draw_state, int
  * @param calendar pointer to a calendar object
  * @param draw_state which month is drawn (previous, active, next)
  * @param year a year
- * @param month a  month [1..12]
+ * @param month a month [1..12]
  * @param day a day [1..31]
  * @return true: highlighted
  */
diff --git a/src/lv_widgets/lv_calendar.h b/src/lv_widgets/lv_calendar.h
index 66f2b24caa..c6489b0d8c 100644
--- a/src/lv_widgets/lv_calendar.h
+++ b/src/lv_widgets/lv_calendar.h
@@ -102,7 +102,7 @@ void lv_calendar_set_today_date(lv_obj_t * calendar, lv_calendar_date_t * today)
 void lv_calendar_set_showed_date(lv_obj_t * calendar, lv_calendar_date_t * showed);
 
 /**
- * Set the the highlighted dates
+ * Set the highlighted dates
  * @param calendar pointer to a calendar object
  * @param highlighted pointer to an `lv_calendar_date_t` array containing the dates. ONLY A POINTER
  * WILL BE SAVED! CAN'T BE LOCAL ARRAY.
@@ -147,7 +147,7 @@ lv_calendar_date_t * lv_calendar_get_today_date(const lv_obj_t * calendar);
 lv_calendar_date_t * lv_calendar_get_showed_date(const lv_obj_t * calendar);
 
 /**
- * Get the the pressed date.
+ * Get the pressed date.
  * @param calendar pointer to a calendar object
  * @return pointer to an `lv_calendar_date_t` variable containing the pressed date.
  *         `NULL` if not date pressed (e.g. the header)
@@ -155,7 +155,7 @@ lv_calendar_date_t * lv_calendar_get_showed_date(const lv_obj_t * calendar);
 lv_calendar_date_t * lv_calendar_get_pressed_date(const lv_obj_t * calendar);
 
 /**
- * Get the the highlighted dates
+ * Get the highlighted dates
  * @param calendar pointer to a calendar object
  * @return pointer to an `lv_calendar_date_t` array containing the dates.
  */
@@ -185,7 +185,7 @@ const char ** lv_calendar_get_month_names(const lv_obj_t * calendar);
 /**
  * Get the day of the week
  * @param year a year
- * @param month a  month (1..12)
+ * @param month a month (1..12)
  * @param day a day (1..31)
  * @return [0..6] which means [Sun..Sat] or [Mon..Sun] depending on LV_CALENDAR_WEEK_STARTS_MONDAY
  */
diff --git a/src/lv_widgets/lv_canvas.c b/src/lv_widgets/lv_canvas.c
index 4203779c68..a5ecf7946a 100644
--- a/src/lv_widgets/lv_canvas.c
+++ b/src/lv_widgets/lv_canvas.c
@@ -1025,7 +1025,7 @@ void lv_canvas_draw_polygon(lv_obj_t * canvas, const lv_point_t points[], uint32
 /**
  * Draw an arc on the canvas
  * @param canvas pointer to a canvas object
- * @param x origo x  of the arc
+ * @param x origo x of the arc
  * @param y origo y of the arc
  * @param r radius of the arc
  * @param start_angle start angle in degrees
diff --git a/src/lv_widgets/lv_canvas.h b/src/lv_widgets/lv_canvas.h
index 0c9ca80da1..13b503b969 100644
--- a/src/lv_widgets/lv_canvas.h
+++ b/src/lv_widgets/lv_canvas.h
@@ -232,7 +232,7 @@ void lv_canvas_draw_polygon(lv_obj_t * canvas, const lv_point_t points[], uint32
 /**
  * Draw an arc on the canvas
  * @param canvas pointer to a canvas object
- * @param x origo x  of the arc
+ * @param x origo x of the arc
  * @param y origo y of the arc
  * @param r radius of the arc
  * @param start_angle start angle in degrees
diff --git a/src/lv_widgets/lv_chart.c b/src/lv_widgets/lv_chart.c
index b6ed55ce74..edff8aaebe 100644
--- a/src/lv_widgets/lv_chart.c
+++ b/src/lv_widgets/lv_chart.c
@@ -424,7 +424,7 @@ void lv_chart_set_point_count(lv_obj_t * chart, uint16_t point_cnt)
  * Initialize all data points with a value
  * @param chart pointer to chart object
  * @param ser pointer to a data series on 'chart'
- * @param y the new value  for all points
+ * @param y the new value for all points
  */
 void lv_chart_init_points(lv_obj_t * chart, lv_chart_series_t * ser, lv_coord_t y)
 {
@@ -901,8 +901,8 @@ lv_coord_t lv_chart_get_y_from_index(lv_obj_t * chart, lv_chart_series_t * ser,
 
 /**
  * Get the series area of a chart.
- * @param chart  pointer to a chart object
- * @param series_area  pointer to an area variable that the result will be put in.
+ * @param chart pointer to a chart object
+ * @param series_area pointer to an area variable that the result will be put in.
  */
 void lv_chart_get_series_area(lv_obj_t * chart, lv_area_t * series_area)
 {
diff --git a/src/lv_widgets/lv_chart.h b/src/lv_widgets/lv_chart.h
index df75a6d362..2b1ea07aff 100644
--- a/src/lv_widgets/lv_chart.h
+++ b/src/lv_widgets/lv_chart.h
@@ -223,7 +223,7 @@ void lv_chart_set_point_count(lv_obj_t * chart, uint16_t point_cnt);
  * Initialize all data points with a value
  * @param chart pointer to chart object
  * @param ser pointer to a data series on 'chart'
- * @param y the new value  for all points
+ * @param y the new value for all points
  */
 void lv_chart_init_points(lv_obj_t * chart, lv_chart_series_t * ser, lv_coord_t y);
 
diff --git a/src/lv_widgets/lv_checkbox.h b/src/lv_widgets/lv_checkbox.h
index 0ea2ecf379..7e301615fb 100644
--- a/src/lv_widgets/lv_checkbox.h
+++ b/src/lv_widgets/lv_checkbox.h
@@ -19,11 +19,11 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_BTN == 0
-#error "lv_cb: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN  1) "
+#error "lv_cb: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN 1)"
 #endif
 
 #if LV_USE_LABEL == 0
-#error "lv_cb: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL  1) "
+#error "lv_cb: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
diff --git a/src/lv_widgets/lv_cont.c b/src/lv_widgets/lv_cont.c
index 7a21bc2b38..679576a146 100644
--- a/src/lv_widgets/lv_cont.c
+++ b/src/lv_widgets/lv_cont.c
@@ -508,7 +508,7 @@ static void lv_cont_layout_pretty(lv_obj_t * cont)
     lv_coord_t pright         =  lv_obj_get_style_pad_right(cont, LV_CONT_PART_MAIN);
     lv_coord_t pinner = lv_obj_get_style_pad_inner(cont, LV_CONT_PART_MAIN);
 
-    child_rc = child_rs; /*Initially the the row starter and closer is the same*/
+    child_rc = child_rs; /*Initially the row starter and closer is the same*/
     while(child_rs != NULL) {
         lv_coord_t h_row = 0;
         lv_coord_t w_row = pleft + pright; /*The width is at least the left+right pad*/
diff --git a/src/lv_widgets/lv_dropdown.c b/src/lv_widgets/lv_dropdown.c
index f33cd3d738..84664e2810 100644
--- a/src/lv_widgets/lv_dropdown.c
+++ b/src/lv_widgets/lv_dropdown.c
@@ -1105,7 +1105,7 @@ static lv_res_t lv_dropdown_page_scrl_signal(lv_obj_t * scrl, lv_signal_t sign,
         ext->pr_opt_id = LV_DROPDOWN_PR_NONE;
         lv_obj_invalidate(page);
     }
-    else  if(sign == LV_SIGNAL_REFR_EXT_DRAW_PAD) {
+    else if(sign == LV_SIGNAL_REFR_EXT_DRAW_PAD) {
         /* Make possible to draw on the full width of the background to redraw the selected rectangle
          * when the ddlist is scrolled in fix height mode.
          * (The scrollable is scrolled then "select rectangle" is drawn on the bg too)*/
diff --git a/src/lv_widgets/lv_dropdown.h b/src/lv_widgets/lv_dropdown.h
index 05c6bb553b..7676d29184 100644
--- a/src/lv_widgets/lv_dropdown.h
+++ b/src/lv_widgets/lv_dropdown.h
@@ -19,11 +19,11 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_PAGE == 0
-#error "lv_ddlist: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE  1) "
+#error "lv_ddlist: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE 1)"
 #endif
 
 #if LV_USE_LABEL == 0
-#error "lv_ddlist: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL  1) "
+#error "lv_ddlist: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
 #endif
 
 #include "../lv_widgets/lv_page.h"
@@ -123,7 +123,7 @@ void lv_dropdown_set_options_static(lv_obj_t * ddlist, const char * options);
  * Add an options to a drop down list from a string.  Only works for dynamic options.
  * @param ddlist pointer to drop down list object
  * @param option a string without '\n'. E.g. "Four"
- * @param pos  the insert position, indexed from 0, LV_DROPDOWN_POS_LAST = end of string
+ * @param pos the insert position, indexed from 0, LV_DROPDOWN_POS_LAST = end of string
  */
 void lv_dropdown_add_option(lv_obj_t * ddlist, const char * option, uint32_t pos);
 
diff --git a/src/lv_widgets/lv_gauge.h b/src/lv_widgets/lv_gauge.h
index c2293dd819..7194757795 100644
--- a/src/lv_widgets/lv_gauge.h
+++ b/src/lv_widgets/lv_gauge.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_LINEMETER == 0
-#error "lv_gauge: lv_linemeter is required. Enable it in lv_conf.h (LV_USE_LINEMETER  1) "
+#error "lv_gauge: lv_linemeter is required. Enable it in lv_conf.h (LV_USE_LINEMETER 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
diff --git a/src/lv_widgets/lv_img.c b/src/lv_widgets/lv_img.c
index ab77125aa9..a85346607f 100644
--- a/src/lv_widgets/lv_img.c
+++ b/src/lv_widgets/lv_img.c
@@ -11,7 +11,7 @@
 
 /*Testing of dependencies*/
 #if LV_USE_LABEL == 0
-    #error "lv_img: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL  1) "
+    #error "lv_img: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
 #endif
 
 #include "../lv_misc/lv_debug.h"
diff --git a/src/lv_widgets/lv_imgbtn.c b/src/lv_widgets/lv_imgbtn.c
index 76b9be8818..a52bdec080 100644
--- a/src/lv_widgets/lv_imgbtn.c
+++ b/src/lv_widgets/lv_imgbtn.c
@@ -195,7 +195,7 @@ void lv_imgbtn_toggle(lv_obj_t * imgbtn)
  *====================*/
 
 /**
- * Get the images in a  given state
+ * Get the images in a given state
  * @param imgbtn pointer to an image button object
  * @param state the state where to get the image (from `lv_btn_state_t`) `
  * @return pointer to an image source (a C array or path to a file)
@@ -521,7 +521,7 @@ static void refr_img(lv_obj_t * imgbtn)
     if(info_res == LV_RES_OK) {
         ext->act_cf = header.cf;
         if(ext->tiled) lv_obj_set_height(imgbtn, header.h); /*Keep the sure defined width*/
-        else  lv_obj_set_size(imgbtn, header.w, header.h);
+        else lv_obj_set_size(imgbtn, header.w, header.h);
     }
     else {
         ext->act_cf = LV_IMG_CF_UNKNOWN;
diff --git a/src/lv_widgets/lv_imgbtn.h b/src/lv_widgets/lv_imgbtn.h
index 1f939f934d..1f3130dff3 100644
--- a/src/lv_widgets/lv_imgbtn.h
+++ b/src/lv_widgets/lv_imgbtn.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_BTN == 0
-#error "lv_imgbtn: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN  1) "
+#error "lv_imgbtn: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
@@ -127,7 +127,7 @@ static inline void lv_imgbtn_set_checkable(lv_obj_t * imgbtn, bool tgl)
 
 #if LV_IMGBTN_TILED == 0
 /**
- * Get the images in a  given state
+ * Get the images in a given state
  * @param imgbtn pointer to an image button object
  * @param state the state where to get the image (from `lv_btn_state_t`) `
  * @return pointer to an image source (a C array or path to a file)
diff --git a/src/lv_widgets/lv_keyboard.c b/src/lv_widgets/lv_keyboard.c
index ae40b4deb6..589a5e17e3 100644
--- a/src/lv_widgets/lv_keyboard.c
+++ b/src/lv_widgets/lv_keyboard.c
@@ -329,7 +329,7 @@ bool lv_keyboard_get_cursor_manage(const lv_obj_t * kb)
  * Default keyboard event to add characters to the Text area and change the map.
  * If a custom `event_cb` is added to the keyboard this function be called from it to handle the
  * button clicks
- * @param kb pointer to a  keyboard
+ * @param kb pointer to a keyboard
  * @param event the triggering event
  */
 void lv_keyboard_def_event_cb(lv_obj_t * kb, lv_event_t event)
@@ -372,7 +372,7 @@ void lv_keyboard_def_event_cb(lv_obj_t * kb, lv_event_t event)
             if(res != LV_RES_OK) return;
         }
         else {
-            lv_keyboard_set_textarea(kb, NULL); /*De-assign the text area  to hide it cursor if needed*/
+            lv_keyboard_set_textarea(kb, NULL); /*De-assign the text area to hide it cursor if needed*/
             lv_obj_del(kb);
             return;
         }
diff --git a/src/lv_widgets/lv_keyboard.h b/src/lv_widgets/lv_keyboard.h
index 3edd344b09..626a4d5434 100644
--- a/src/lv_widgets/lv_keyboard.h
+++ b/src/lv_widgets/lv_keyboard.h
@@ -19,11 +19,11 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_BTNMATRIX == 0
-#error "lv_kb: lv_btnm is required. Enable it in lv_conf.h (LV_USE_BTNMATRIX  1) "
+#error "lv_kb: lv_btnm is required. Enable it in lv_conf.h (LV_USE_BTNMATRIX 1)"
 #endif
 
 #if LV_USE_TEXTAREA == 0
-#error "lv_kb: lv_ta is required. Enable it in lv_conf.h (LV_USE_TEXTAREA  1) "
+#error "lv_kb: lv_ta is required. Enable it in lv_conf.h (LV_USE_TEXTAREA 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
@@ -162,7 +162,7 @@ static inline const char ** lv_keyboard_get_map_array(const lv_obj_t * kb)
  * Default keyboard event to add characters to the Text area and change the map.
  * If a custom `event_cb` is added to the keyboard this function be called from it to handle the
  * button clicks
- * @param kb pointer to a  keyboard
+ * @param kb pointer to a keyboard
  * @param event the triggering event
  */
 void lv_keyboard_def_event_cb(lv_obj_t * kb, lv_event_t event);
diff --git a/src/lv_widgets/lv_label.c b/src/lv_widgets/lv_label.c
index 4f43782ddb..112143b88e 100644
--- a/src/lv_widgets/lv_label.c
+++ b/src/lv_widgets/lv_label.c
@@ -738,7 +738,7 @@ uint32_t lv_label_get_letter_on(const lv_obj_t * label, lv_point_t * pos_in)
             lv_coord_t gw = lv_font_get_glyph_width(font, letter, letter_next);
 
             /*Finish if the x position or the last char of the next line is reached*/
-            if(pos.x < x + gw || i + line_start == new_line_start ||  txt[i_act + line_start] == '\0') {
+            if(pos.x < x + gw || i + line_start == new_line_start || txt[i_act + line_start] == '\0') {
                 i = i_act;
                 break;
             }
@@ -765,7 +765,7 @@ uint32_t lv_label_get_letter_on(const lv_obj_t * label, lv_point_t * pos_in)
     logical_pos = _lv_txt_encoded_get_char_id(bidi_txt, i);
 #endif
 
-    return  logical_pos + _lv_txt_encoded_get_char_id(txt, line_start);
+    return logical_pos + _lv_txt_encoded_get_char_id(txt, line_start);
 }
 
 /**
diff --git a/src/lv_widgets/lv_list.h b/src/lv_widgets/lv_list.h
index f78cd3cf97..4afe245cbf 100644
--- a/src/lv_widgets/lv_list.h
+++ b/src/lv_widgets/lv_list.h
@@ -19,15 +19,15 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_PAGE == 0
-#error "lv_list: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE  1) "
+#error "lv_list: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE 1)"
 #endif
 
 #if LV_USE_BTN == 0
-#error "lv_list: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN  1) "
+#error "lv_list: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN 1)"
 #endif
 
 #if LV_USE_LABEL == 0
-#error "lv_list: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL  1) "
+#error "lv_list: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
diff --git a/src/lv_widgets/lv_msgbox.c b/src/lv_widgets/lv_msgbox.c
index 203c8d0073..d5669865ed 100644
--- a/src/lv_widgets/lv_msgbox.c
+++ b/src/lv_widgets/lv_msgbox.c
@@ -233,7 +233,7 @@ void lv_msgbox_set_text_fmt(lv_obj_t * mbox, const char * fmt, ...)
 /**
  * Set animation duration
  * @param mbox pointer to a message box object
- * @param anim_time animation length in  milliseconds (0: no animation)
+ * @param anim_time animation length in milliseconds (0: no animation)
  */
 void lv_msgbox_set_anim_time(lv_obj_t * mbox, uint16_t anim_time)
 {
@@ -344,9 +344,9 @@ const char * lv_msgbox_get_text(const lv_obj_t * mbox)
 
 /**
  * Get the index of the lastly "activated" button by the user (pressed, released etc)
- * Useful in the the `event_cb`.
+ * Useful in the `event_cb`.
  * @param mbox pointer to message box object
- * @return  index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset)
+ * @return index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset)
  */
 uint16_t lv_msgbox_get_active_btn(lv_obj_t * mbox)
 {
@@ -365,7 +365,7 @@ uint16_t lv_msgbox_get_active_btn(lv_obj_t * mbox)
 
 /**
  * Get the text of the lastly "activated" button by the user (pressed, released etc)
- * Useful in the the `event_cb`.
+ * Useful in the `event_cb`.
  * @param mbox pointer to message box object
  * @return text of the last released button (NULL: if unset)
  */
@@ -383,7 +383,7 @@ const char * lv_msgbox_get_active_btn_text(lv_obj_t * mbox)
 /**
  * Get the animation duration (close animation time)
  * @param mbox pointer to a message box object
- * @return animation length in  milliseconds (0: no animation)
+ * @return animation length in milliseconds (0: no animation)
  */
 uint16_t lv_msgbox_get_anim_time(const lv_obj_t * mbox)
 {
diff --git a/src/lv_widgets/lv_msgbox.h b/src/lv_widgets/lv_msgbox.h
index 263a442f97..18c3f1246d 100644
--- a/src/lv_widgets/lv_msgbox.h
+++ b/src/lv_widgets/lv_msgbox.h
@@ -19,15 +19,15 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_CONT == 0
-#error "lv_mbox: lv_cont is required. Enable it in lv_conf.h (LV_USE_CONT  1) "
+#error "lv_mbox: lv_cont is required. Enable it in lv_conf.h (LV_USE_CONT 1)"
 #endif
 
 #if LV_USE_BTNMATRIX == 0
-#error "lv_mbox: lv_btnm is required. Enable it in lv_conf.h (LV_USE_BTNMATRIX  1) "
+#error "lv_mbox: lv_btnm is required. Enable it in lv_conf.h (LV_USE_BTNMATRIX 1)"
 #endif
 
 #if LV_USE_LABEL == 0
-#error "lv_mbox: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL  1) "
+#error "lv_mbox: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
@@ -109,7 +109,7 @@ void lv_msgbox_set_text_fmt(lv_obj_t * mbox, const char * fmt, ...);
 /**
  * Set animation duration
  * @param mbox pointer to a message box object
- * @param anim_time animation length in  milliseconds (0: no animation)
+ * @param anim_time animation length in milliseconds (0: no animation)
  */
 void lv_msgbox_set_anim_time(lv_obj_t * mbox, uint16_t anim_time);
 
@@ -146,15 +146,15 @@ const char * lv_msgbox_get_text(const lv_obj_t * mbox);
 
 /**
  * Get the index of the lastly "activated" button by the user (pressed, released etc)
- * Useful in the the `event_cb`.
+ * Useful in the `event_cb`.
  * @param mbox pointer to message box object
- * @return  index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset)
+ * @return index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset)
  */
 uint16_t lv_msgbox_get_active_btn(lv_obj_t * mbox);
 
 /**
  * Get the text of the lastly "activated" button by the user (pressed, released etc)
- * Useful in the the `event_cb`.
+ * Useful in the `event_cb`.
  * @param mbox pointer to message box object
  * @return text of the last released button (NULL: if unset)
  */
@@ -163,7 +163,7 @@ const char * lv_msgbox_get_active_btn_text(lv_obj_t * mbox);
 /**
  * Get the animation duration (close animation time)
  * @param mbox pointer to a message box object
- * @return animation length in  milliseconds (0: no animation)
+ * @return animation length in milliseconds (0: no animation)
  */
 uint16_t lv_msgbox_get_anim_time(const lv_obj_t * mbox);
 
diff --git a/src/lv_widgets/lv_page.c b/src/lv_widgets/lv_page.c
index 85cf212531..d044676671 100644
--- a/src/lv_widgets/lv_page.c
+++ b/src/lv_widgets/lv_page.c
@@ -383,7 +383,7 @@ lv_coord_t lv_page_get_height_fit(lv_obj_t * page)
  * Take into account the paddings of the background and scrollable too.
  * @param page pointer to an object
  * @param div indicates how many columns are assumed.
- * If 1 the width will be set the the parent's width
+ * If 1 the width will be set the parent's width
  * If 2 only half parent width - inner padding of the parent
  * If 3 only third parent width - 2 * inner padding of the parent
  * @param span how many columns are combined
@@ -406,7 +406,7 @@ lv_coord_t lv_page_get_width_grid(lv_obj_t * page, uint8_t div, uint8_t span)
  * Take into account the paddings of the background and scrollable too.
  * @param obj pointer to an object
  * @param div indicates how many rows are assumed.
- * If 1 the height will be set the the parent's height
+ * If 1 the height will be set the parent's height
  * If 2 only half parent height - inner padding of the parent
  * If 3 only third parent height - 2 * inner padding of the parent
  * @param span how many rows are combined
@@ -536,7 +536,7 @@ void lv_page_focus(lv_obj_t * page, const lv_obj_t * obj, lv_anim_enable_t anim_
         scrlable_x = -(obj_x - scrl_left - bg_left);
         scrlable_x += scrl_left;
     }
-    /*Out of the page on the rigth*/
+    /*Out of the page on the right*/
     else if((obj_w <= page_w && right_err > 0) || (obj_w > page_w && left_err >= right_err)) {
         /*Calculate a new position and let some space on the side*/
         scrlable_x = -(obj_x + scrl_right + bg_right);
diff --git a/src/lv_widgets/lv_page.h b/src/lv_widgets/lv_page.h
index 051dce5093..0894572e86 100644
--- a/src/lv_widgets/lv_page.h
+++ b/src/lv_widgets/lv_page.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_CONT == 0
-#error "lv_page: lv_cont is required. Enable it in lv_conf.h (LV_USE_CONT  1) "
+#error "lv_page: lv_cont is required. Enable it in lv_conf.h (LV_USE_CONT 1)"
 #endif
 
 #include "lv_cont.h"
@@ -273,7 +273,7 @@ lv_coord_t lv_page_get_height_fit(lv_obj_t * page);
  * Take into account the paddings of the background and scrollable too.
  * @param page pointer to an object
  * @param div indicates how many columns are assumed.
- * If 1 the width will be set the the parent's width
+ * If 1 the width will be set the parent's width
  * If 2 only half parent width - inner padding of the parent
  * If 3 only third parent width - 2 * inner padding of the parent
  * @param span how many columns are combined
@@ -286,7 +286,7 @@ lv_coord_t lv_page_get_width_grid(lv_obj_t * page, uint8_t div, uint8_t span);
  * Take into account the paddings of the background and scrollable too.
  * @param page pointer to an object
  * @param div indicates how many rows are assumed.
- * If 1 the height will be set the the parent's height
+ * If 1 the height will be set the parent's height
  * If 2 only half parent height - inner padding of the parent
  * If 3 only third parent height - 2 * inner padding of the parent
  * @param span how many rows are combined
diff --git a/src/lv_widgets/lv_roller.c b/src/lv_widgets/lv_roller.c
index ba8440762f..1b20332a32 100644
--- a/src/lv_widgets/lv_roller.c
+++ b/src/lv_widgets/lv_roller.c
@@ -522,7 +522,7 @@ static lv_design_res_t lv_roller_label_design(lv_obj_t * label, const lv_area_t
     }
     /*Draw the object*/
     else if(mode == LV_DESIGN_DRAW_MAIN) {
-        /* Split the drawing of the label into  an upper (above the selected area)
+        /* Split the drawing of the label into an upper (above the selected area)
          * and a lower (below the selected area)*/
         lv_obj_t * roller = lv_obj_get_parent(lv_obj_get_parent(label));
         const lv_font_t * font = lv_obj_get_style_text_font(roller, LV_ROLLER_PART_BG);
diff --git a/src/lv_widgets/lv_roller.h b/src/lv_widgets/lv_roller.h
index 06e9e73839..727dc9dab0 100644
--- a/src/lv_widgets/lv_roller.h
+++ b/src/lv_widgets/lv_roller.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_PAGE == 0
-#error "lv_roller: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE 1) "
+#error "lv_roller: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
diff --git a/src/lv_widgets/lv_slider.h b/src/lv_widgets/lv_slider.h
index 2f0d86a44e..b2797507fc 100644
--- a/src/lv_widgets/lv_slider.h
+++ b/src/lv_widgets/lv_slider.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_BAR == 0
-#error "lv_slider: lv_bar is required. Enable it in lv_conf.h (LV_USE_BAR  1) "
+#error "lv_slider: lv_bar is required. Enable it in lv_conf.h (LV_USE_BAR 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
diff --git a/src/lv_widgets/lv_spinbox.h b/src/lv_widgets/lv_spinbox.h
index 83c057f58a..93c665d27d 100644
--- a/src/lv_widgets/lv_spinbox.h
+++ b/src/lv_widgets/lv_spinbox.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_TEXTAREA == 0
-#error "lv_spinbox: lv_ta is required. Enable it in lv_conf.h (LV_USE_TEXTAREA  1) "
+#error "lv_spinbox: lv_ta is required. Enable it in lv_conf.h (LV_USE_TEXTAREA 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
diff --git a/src/lv_widgets/lv_spinner.c b/src/lv_widgets/lv_spinner.c
index 8e0e2dcd00..b7677d3fa0 100644
--- a/src/lv_widgets/lv_spinner.c
+++ b/src/lv_widgets/lv_spinner.c
@@ -121,7 +121,7 @@ lv_obj_t * lv_spinner_create(lv_obj_t * par, const lv_obj_t * copy)
  *=====================*/
 
 /**
- * Set the length of the spinning  arc in degrees
+ * Set the length of the spinning arc in degrees
  * @param spinner pointer to a spinner object
  * @param deg length of the arc
  */
diff --git a/src/lv_widgets/lv_spinner.h b/src/lv_widgets/lv_spinner.h
index 6649202e45..dea0088192 100644
--- a/src/lv_widgets/lv_spinner.h
+++ b/src/lv_widgets/lv_spinner.h
@@ -19,11 +19,11 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_ARC == 0
-#error "lv_spinner: lv_arc is required. Enable it in lv_conf.h (LV_USE_ARC  1) "
+#error "lv_spinner: lv_arc is required. Enable it in lv_conf.h (LV_USE_ARC 1)"
 #endif
 
 #if LV_USE_ANIMATION == 0
-#error "lv_spinner: animations are required. Enable it in lv_conf.h (LV_USE_ANIMATION  1) "
+#error "lv_spinner: animations are required. Enable it in lv_conf.h (LV_USE_ANIMATION 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
@@ -95,7 +95,7 @@ lv_obj_t * lv_spinner_create(lv_obj_t * par, const lv_obj_t * copy);
  *=====================*/
 
 /**
- * Set the length of the spinning  arc in degrees
+ * Set the length of the spinning arc in degrees
  * @param spinner pointer to a spinner object
  * @param deg length of the arc
  */
diff --git a/src/lv_widgets/lv_switch.c b/src/lv_widgets/lv_switch.c
index 0a43def6f7..9561b7bf76 100644
--- a/src/lv_widgets/lv_switch.c
+++ b/src/lv_widgets/lv_switch.c
@@ -12,7 +12,7 @@
 
 /*Testing of dependencies*/
 #if LV_USE_SLIDER == 0
-    #error "lv_sw: lv_slider is required. Enable it in lv_conf.h (LV_USE_SLIDER  1) "
+    #error "lv_sw: lv_slider is required. Enable it in lv_conf.h (LV_USE_SLIDER 1)"
 #endif
 
 #include "../lv_misc/lv_debug.h"
diff --git a/src/lv_widgets/lv_switch.h b/src/lv_widgets/lv_switch.h
index 868951cc72..4869100a13 100644
--- a/src/lv_widgets/lv_switch.h
+++ b/src/lv_widgets/lv_switch.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_SLIDER == 0
-#error "lv_sw: lv_slider is required. Enable it in lv_conf.h (LV_USE_SLIDER  1)"
+#error "lv_sw: lv_slider is required. Enable it in lv_conf.h (LV_USE_SLIDER 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
@@ -91,7 +91,7 @@ bool lv_switch_toggle(lv_obj_t * sw, lv_anim_enable_t anim);
 
 /**
  * Set the animation time of the switch
- * @param sw pointer to a  switch object
+ * @param sw pointer to a switch object
  * @param anim_time animation time
  * @return style pointer to a style
  */
@@ -116,7 +116,7 @@ static inline bool lv_switch_get_state(const lv_obj_t * sw)
 
 /**
  * Get the animation time of the switch
- * @param sw pointer to a  switch object
+ * @param sw pointer to a switch object
  * @return style pointer to a style
  */
 static inline uint16_t lv_switch_get_anim_time(const lv_obj_t * sw)
diff --git a/src/lv_widgets/lv_table.h b/src/lv_widgets/lv_table.h
index ea00c45ed8..a5b0ab5753 100644
--- a/src/lv_widgets/lv_table.h
+++ b/src/lv_widgets/lv_table.h
@@ -19,7 +19,7 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_LABEL == 0
-#error "lv_table: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL  1) "
+#error "lv_table: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
@@ -56,7 +56,7 @@ typedef union {
     struct {
         uint8_t align : 2;
         uint8_t right_merge : 1;
-        uint8_t type : 4; // upto 16 values
+        uint8_t type : 4; // up to 16 values
         uint8_t crop : 1;
     } s;
     uint8_t format_byte;
@@ -78,7 +78,7 @@ uint16_t cell_types :
 /*Parts of the table*/
 enum {
     LV_TABLE_PART_BG,     /* Because of this member, LV_PART.*CELL1 has enum value of 1,        */
-    LV_TABLE_PART_CELL1,  /*   LV_PART.*CELL2 has an enum value of 2 and so on upto the maximum */
+    LV_TABLE_PART_CELL1,  /*   LV_PART.*CELL2 has an enum value of 2 and so on up to the maximum */
     LV_TABLE_PART_CELL2,  /*   number of styles specified by LV_TABLE_CELL_STYLE_CNT            */
     LV_TABLE_PART_CELL3,
     LV_TABLE_PART_CELL4,  /* CELL 5-16 are not needed to be defined, the values in this enum
diff --git a/src/lv_widgets/lv_tabview.c b/src/lv_widgets/lv_tabview.c
index b7345c1f19..325dbae8c2 100644
--- a/src/lv_widgets/lv_tabview.c
+++ b/src/lv_widgets/lv_tabview.c
@@ -223,7 +223,7 @@ lv_obj_t * lv_tabview_add_tab(lv_obj_t * tabview, const char * name)
 
     /*Extend the button matrix map with the new name*/
     char * name_dm;
-    name_dm = lv_mem_alloc(strlen(name) + 1); /*+1 for the the closing '\0' */
+    name_dm = lv_mem_alloc(strlen(name) + 1); /*+1 for the closing '\0' */
     LV_ASSERT_MEM(name_dm);
     if(name_dm == NULL) return NULL;
     strcpy(name_dm, name);
@@ -747,15 +747,15 @@ static lv_res_t tabview_scrl_signal(lv_obj_t * tabview_scrl, lv_signal_t sign, v
         if(tab_page == NULL) return LV_RES_OK;
         lv_coord_t page_x1  = tab_page->coords.x1 - tabview->coords.x1 + x_predict;
         lv_coord_t page_x2  = page_x1 + lv_obj_get_width(tabview);
-        lv_coord_t treshold = lv_obj_get_width(tabview) / 2;
+        lv_coord_t threshold = lv_obj_get_width(tabview) / 2;
 
         lv_bidi_dir_t base_dir = lv_obj_get_base_dir(tabview);
         int16_t tab_cur = ext->tab_cur;
-        if(page_x1 > treshold) {
+        if(page_x1 > threshold) {
             if(base_dir != LV_BIDI_DIR_RTL) tab_cur--;
             else tab_cur ++;
         }
-        else if(page_x2 < treshold) {
+        else if(page_x2 < threshold) {
             if(base_dir != LV_BIDI_DIR_RTL) tab_cur++;
             else tab_cur --;
         }
diff --git a/src/lv_widgets/lv_tabview.h b/src/lv_widgets/lv_tabview.h
index 6970d8e18e..4254d29df1 100644
--- a/src/lv_widgets/lv_tabview.h
+++ b/src/lv_widgets/lv_tabview.h
@@ -19,11 +19,11 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_BTNMATRIX == 0
-#error "lv_tabview: lv_btnm is required. Enable it in lv_conf.h (LV_USE_BTNMATRIX  1) "
+#error "lv_tabview: lv_btnm is required. Enable it in lv_conf.h (LV_USE_BTNMATRIX 1)"
 #endif
 
 #if LV_USE_PAGE == 0
-#error "lv_tabview: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE  1) "
+#error "lv_tabview: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
diff --git a/src/lv_widgets/lv_textarea.c b/src/lv_widgets/lv_textarea.c
index 4b231f07a0..58b1df001f 100644
--- a/src/lv_widgets/lv_textarea.c
+++ b/src/lv_widgets/lv_textarea.c
@@ -688,7 +688,7 @@ void lv_textarea_set_cursor_hidden(lv_obj_t * ta, bool hide)
 }
 
 /**
- * Enable/Disable the positioning of the the cursor by clicking the text on the text area.
+ * Enable/Disable the positioning of the cursor by clicking the text on the text area.
  * @param ta pointer to a text area object
  * @param en true: enable click positions; false: disable
  */
@@ -816,7 +816,7 @@ void lv_textarea_set_text_align(lv_obj_t * ta, lv_label_align_t align)
 
 /**
  * Set a list of characters. Only these characters will be accepted by the text area
- * @param ta pointer to  Text Area
+ * @param ta pointer to Text Area
  * @param list list of characters. Only the pointer is saved. E.g. "+-.,0123456789"
  */
 void lv_textarea_set_accepted_chars(lv_obj_t * ta, const char * list)
@@ -830,7 +830,7 @@ void lv_textarea_set_accepted_chars(lv_obj_t * ta, const char * list)
 
 /**
  * Set max length of a Text Area.
- * @param ta pointer to  Text Area
+ * @param ta pointer to Text Area
  * @param num the maximal number of characters can be added (`lv_textarea_set_text` ignores it)
  */
 void lv_textarea_set_max_length(lv_obj_t * ta, uint32_t num)
@@ -1058,7 +1058,7 @@ bool lv_textarea_get_one_line(const lv_obj_t * ta)
 
 /**
  * Get a list of accepted characters.
- * @param ta pointer to  Text Area
+ * @param ta pointer to Text Area
  * @return list of accented characters.
  */
 const char * lv_textarea_get_accepted_chars(lv_obj_t * ta)
@@ -1072,7 +1072,7 @@ const char * lv_textarea_get_accepted_chars(lv_obj_t * ta)
 
 /**
  * Set max length of a Text Area.
- * @param ta pointer to  Text Area
+ * @param ta pointer to Text Area
  * @return the maximal number of characters to be add
  */
 uint32_t lv_textarea_get_max_length(lv_obj_t * ta)
@@ -1301,7 +1301,7 @@ static lv_design_res_t lv_textarea_design(lv_obj_t * ta, const lv_area_t * clip_
 /**
  * An extended scrollable design of the page. Calls the normal design function and draws a cursor.
  * @param scrl pointer to the scrollable part of the Text area
- * @param clip_area  the object will be drawn only in this area
+ * @param clip_area the object will be drawn only in this area
  * @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
  *                                  (return 'true' if yes)
  *             LV_DESIGN_DRAW_MAIN: draw the object (always return 'true')
diff --git a/src/lv_widgets/lv_textarea.h b/src/lv_widgets/lv_textarea.h
index 5ccb8ac9a4..258fb2c415 100644
--- a/src/lv_widgets/lv_textarea.h
+++ b/src/lv_widgets/lv_textarea.h
@@ -19,11 +19,11 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_PAGE == 0
-#error "lv_ta: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE  1) "
+#error "lv_ta: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE 1)"
 #endif
 
 #if LV_USE_LABEL == 0
-#error "lv_ta: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL  1) "
+#error "lv_ta: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
@@ -166,7 +166,7 @@ void lv_textarea_set_cursor_pos(lv_obj_t * ta, int32_t pos);
 void lv_textarea_set_cursor_hidden(lv_obj_t * ta, bool hide);
 
 /**
- * Enable/Disable the positioning of the the cursor by clicking the text on the text area.
+ * Enable/Disable the positioning of the cursor by clicking the text on the text area.
  * @param ta pointer to a text area object
  * @param en true: enable click positions; false: disable
  */
@@ -197,14 +197,14 @@ void lv_textarea_set_text_align(lv_obj_t * ta, lv_label_align_t align);
 
 /**
  * Set a list of characters. Only these characters will be accepted by the text area
- * @param ta pointer to  Text Area
+ * @param ta pointer to Text Area
  * @param list list of characters. Only the pointer is saved. E.g. "+-.,0123456789"
  */
 void lv_textarea_set_accepted_chars(lv_obj_t * ta, const char * list);
 
 /**
  * Set max length of a Text Area.
- * @param ta pointer to  Text Area
+ * @param ta pointer to Text Area
  * @param num the maximal number of characters can be added (`lv_textarea_set_text` ignores it)
  */
 void lv_textarea_set_max_length(lv_obj_t * ta, uint32_t num);
@@ -333,14 +333,14 @@ bool lv_textarea_get_one_line(const lv_obj_t * ta);
 
 /**
  * Get a list of accepted characters.
- * @param ta pointer to  Text Area
+ * @param ta pointer to Text Area
  * @return list of accented characters.
  */
 const char * lv_textarea_get_accepted_chars(lv_obj_t * ta);
 
 /**
  * Get max length of a Text Area.
- * @param ta pointer to  Text Area
+ * @param ta pointer to Text Area
  * @return the maximal number of characters to be add
  */
 uint32_t lv_textarea_get_max_length(lv_obj_t * ta);
diff --git a/src/lv_widgets/lv_win.c b/src/lv_widgets/lv_win.c
index e744a915e2..83ba6973de 100644
--- a/src/lv_widgets/lv_win.c
+++ b/src/lv_widgets/lv_win.c
@@ -439,7 +439,7 @@ lv_coord_t lv_win_get_btn_width(lv_obj_t * win)
 }
 
 /**
- * Get the pointer of a widow from one of  its control button.
+ * Get the pointer of a widow from one of its control button.
  * It is useful in the action of the control buttons where only button is known.
  * @param ctrl_btn pointer to a control button of a window
  * @return pointer to the window of 'ctrl_btn'
diff --git a/src/lv_widgets/lv_win.h b/src/lv_widgets/lv_win.h
index ac1f7b1cba..09236d1ccf 100644
--- a/src/lv_widgets/lv_win.h
+++ b/src/lv_widgets/lv_win.h
@@ -19,19 +19,19 @@ extern "C" {
 
 /*Testing of dependencies*/
 #if LV_USE_BTN == 0
-#error "lv_win: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN  1) "
+#error "lv_win: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN 1)"
 #endif
 
 #if LV_USE_LABEL == 0
-#error "lv_win: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL  1) "
+#error "lv_win: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
 #endif
 
 #if LV_USE_IMG == 0
-#error "lv_win: lv_img is required. Enable it in lv_conf.h (LV_USE_IMG  1) "
+#error "lv_win: lv_img is required. Enable it in lv_conf.h (LV_USE_IMG 1)"
 #endif
 
 #if LV_USE_PAGE == 0
-#error "lv_win: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE  1) "
+#error "lv_win: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE 1)"
 #endif
 
 #include "../lv_core/lv_obj.h"
@@ -216,7 +216,7 @@ lv_coord_t lv_win_get_header_height(const lv_obj_t * win);
 lv_coord_t lv_win_get_btn_width(lv_obj_t * win);
 
 /**
- * Get the pointer of a widow from one of  its control button.
+ * Get the pointer of a widow from one of its control button.
  * It is useful in the action of the control buttons where only button is known.
  * @param ctrl_btn pointer to a control button of a window
  * @return pointer to the window of 'ctrl_btn'
diff --git a/tests/build.py b/tests/build.py
index 2f54b29328..43b6134473 100755
--- a/tests/build.py
+++ b/tests/build.py
@@ -34,7 +34,7 @@ def build(name, defines):
   print("---------------------------")
   ret = os.system(cmd)
   if(ret != 0):
-    print("BUILD ERROR! (error code  " + str(ret) + ")")
+    print("BUILD ERROR! (error code " + str(ret) + ")")
     exit(1)
 
   print("---------------------------")
@@ -42,7 +42,7 @@ def build(name, defines):
   print("---------------------------")
   ret = os.system("./test.bin")
   if(ret != 0):
-    print("RUN ERROR! (error code  " + str(ret) + ")")
+    print("RUN ERROR! (error code " + str(ret) + ")")
     exit(1)
 
   print("---------------------------")
diff --git a/tests/lv_test_core/lv_test_style.c b/tests/lv_test_core/lv_test_style.c
index d36676670f..f0ddf7b6dd 100644
--- a/tests/lv_test_core/lv_test_style.c
+++ b/tests/lv_test_core/lv_test_style.c
@@ -147,7 +147,7 @@ static void add_remove_read_prop(void)
     lv_test_assert_int_eq(LV_RES_OK, found, "Get an existing 'color' property");
     lv_test_assert_color_eq(LV_COLOR_RED, color, "Get the value of a 'color' property");
 
-    lv_test_print("Reset the the style");
+    lv_test_print("Reset the style");
     lv_style_reset(&style);
     found = _lv_style_list_get_int(&style_list, LV_STYLE_TEXT_LINE_SPACE, &value);
     lv_test_assert_int_eq(LV_RES_INV, found, "Get an 'int' property from a reseted style");
@@ -414,7 +414,7 @@ static void mem_leak(void)
 {
 
     lv_test_print("");
-    lv_test_print("Test style  set, add, remove memory leak");
+    lv_test_print("Test style set, add, remove memory leak");
     lv_test_print("----------------------------------------");
 
     lv_mem_monitor_t mon_start;