diff --git a/demos/music/lv_demo_music_main.c b/demos/music/lv_demo_music_main.c
index dd304e7d2c..00f5609a0d 100644
--- a/demos/music/lv_demo_music_main.c
+++ b/demos/music/lv_demo_music_main.c
@@ -799,7 +799,7 @@ static void spectrum_draw_event_cb(lv_event_t * e)
         lv_layer_t * layer = lv_event_get_layer(e);
 
         lv_opa_t opa = lv_obj_get_style_opa_recursive(obj, LV_PART_MAIN);
-        if(opa < LV_OPA_MIN) return;
+        if(opa <= LV_OPA_MIN) return;
 
         lv_point_t center;
         lv_area_t obj_coords;
diff --git a/src/core/lv_obj_scroll.c b/src/core/lv_obj_scroll.c
index bfc511a3b6..f8c7d79020 100644
--- a/src/core/lv_obj_scroll.c
+++ b/src/core/lv_obj_scroll.c
@@ -520,8 +520,8 @@ void lv_obj_get_scrollbar_area(lv_obj_t * obj, lv_area_t * hor_area, lv_area_t *
     int32_t hor_req_space = hor_draw ? thickness : 0;
     int32_t rem;
 
-    if(lv_obj_get_style_bg_opa(obj, LV_PART_SCROLLBAR) < LV_OPA_MIN &&
-       lv_obj_get_style_border_opa(obj, LV_PART_SCROLLBAR) < LV_OPA_MIN) {
+    if(lv_obj_get_style_bg_opa(obj, LV_PART_SCROLLBAR) <= LV_OPA_MIN &&
+       lv_obj_get_style_border_opa(obj, LV_PART_SCROLLBAR) <= LV_OPA_MIN) {
         return;
     }
 
diff --git a/src/core/lv_refr.c b/src/core/lv_refr.c
index cbf05f1c3f..73867d2d5a 100644
--- a/src/core/lv_refr.c
+++ b/src/core/lv_refr.c
@@ -1141,7 +1141,7 @@ static void refr_obj(lv_layer_t * layer, lv_obj_t * obj)
 
     /*If `opa_layered != LV_OPA_COVER` draw the widget on a new layer and blend that layer with the given opacity.*/
     const lv_opa_t opa_layered = lv_obj_get_style_opa_layered(obj, LV_PART_MAIN);
-    if(opa_layered < LV_OPA_MIN) return;
+    if(opa_layered <= LV_OPA_MIN) return;
 
     const lv_opa_t layer_opa_ori = layer->opa;
     const lv_color32_t layer_recolor = layer->recolor;
diff --git a/src/misc/lv_color.h b/src/misc/lv_color.h
index 106d16a37c..92f455ad1f 100644
--- a/src/misc/lv_color.h
+++ b/src/misc/lv_color.h
@@ -53,8 +53,8 @@ enum {
     LV_OPA_COVER  = 255,
 };
 
-#define LV_OPA_MIN 2    /**< Opacities below this will be transparent */
-#define LV_OPA_MAX 253  /**< Opacities above this will fully cover */
+#define LV_OPA_MIN 2    /**< Fully transparent if opa <= LV_OPA_MIN */
+#define LV_OPA_MAX 253  /**< Fully cover if opa >= LV_OPA_MAX */
 
 /**
  * Get the pixel size of a color format in bits, bpp