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lvgl / lv_lib_png

PNG decoder for LVGL
MIT License
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how to make the background of image button to be transparent? #32

Closed anghd closed 2 years ago

anghd commented 2 years ago

I'm using LVGL8.0 and RGB585 format images ,

I tried #define LV_COLOR_CHROMA_KEY lv_color_hex(0x000000) /black as background and not draw/ and it takes no effect. my main screen's background is black and there're some overlapped area between image buttons as bellow ing:

kisvegabor commented 2 years ago

Just add alpha channel to the image using GIMP or Photoshop.

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anghd commented 2 years ago

thank you.