Audible Skin Changer - Alter the appearance of Audible's Player.
Using Audible Skin Changer:
First off, copy AudiblePlayer.exe from your device into the same folder as this program.
Make a backup copy of AudiblePlayer.exe somewhere.
If you wish to use different images than the ones I provide, you'll need to use a paint program to modify Main.bmp and Pushed.bmp to your liking.
You can also disable the program's 12-bit dithering. I would recommend disabling this if your images uses large areas of solid colors, or if it's already dithered.
Read the warnings above.
Click on Change Skin.
Once it's done you should be able to copy over the newer version of AudiblePlayer.exe to your device.