Q: How can I change the color of the CE desktop? Q: Can I use a full-screen bitmap/logo for the CE desktop?
You can change the color by changing the desktop settings programmatically. However, it may be easier to create a bitmap and load it onto your system using ADSLOAD.BMP. Create it to be the dimensions of your display (e.g. 320x240, 640x480, etc).
ADSLOAD.BMP must be 4- or 8-bpp and less than 256kB in size. That means that for VGA and SVGA bitmaps, you must save the image as a 16-color (4bpp) bitmap.