Yesterday, Eurisko chessboards became available in the Installer.app through the Ste Packaging source. Eurisko chessboards is an add-on app that adds new chessboard skins to the app Caissa…however, this is just an add-on and puts the new chessboards right into the options in Caissa so, you will not see an icon for them on your SpringBoard. The five new skins include; Aqua, Carbon, Metal, Simple and Stone. Here are the screenshots: