docs(color_format): add rgb565 swapped format info (#9310)

docs/src/main-modules/display/color_format.rst

@@ -30,12 +30,13 @@ Swapping Endian-ness
 In case of RGB565 color format it might be required to swap the 2 bytes
 because the SPI, I2C or 8 bit parallel port periphery sends them in the wrong order.
 
-The ideal solution is to configure the hardware to handle the 16-bit data with a different byte order,
-however if this is not possible :cpp:expr:`lv_draw_sw_rgb565_swap(buf, buf_size_in_px)`
-can be called in the :ref:`flush_callback` to swap the bytes.
+This usually requires calling :cpp:expr:`lv_draw_sw_rgb565_swap(buf, buf_size_in_px)` 
+inside the :ref:`flush_callback`, implementing a custom function to swap the bytes or 
+using the correct color format.
 
-If you wish you can also write your own function, or use assembly instructions for
-the fastest possible byte swapping.
+LVGL supports the :c:macro:`LV_COLOR_FORMAT_RGB565_SWAPPED` color format natively.
+By using this color format, no manual byte swapping is needed at all, 
+simplifying display drivers and eliminating software overhead.
 
 Note that this is not about swapping the Red and Blue channel but converting
 
@@ -159,6 +160,7 @@ API
 .. API equals:
     LV_COLOR_DEPTH
     LV_COLOR_FORMAT_ARGB8888
+    LV_COLOR_FORMAT_RGB565_SWAPPED
     lv_display_set_buffers
     lv_display_set_color_depth
     lv_display_set_color_format