Leventhan skins
Today is a resource highlight from Leventhan’s excellent tutorial blog. He released several windowskins on it for public use.
You can grab them all at the following link:
http://leventhan.wordpress.com/2008/11/07/custom-windowskins/
Be sure to check his blog regularly for handy advice that can help you with creating your game. :)
Dev Advice
You should try avoiding colors and sound effects for your puzzles. Many players are colorblind or hearing impaired. If you do use colors, try to make sure they’re noticeably different from each other besides hue changes.
