Hi, I got several icons in PNG file to be displayed. I used two ways to display it: 1. I converted the PNG file into a c file then compile it into the binary. It displayed correctly. 2. I converted the PNG file into a c stream file then stored the c stream file into a file system. When displaying it, I call GUI_DrawStreamedBitmapExAuto and the stream file will be loaded from file system dynamically. Both way used the same target format when converting with BMPCVT, it's RGB565 with alpha channel …