[Draenin]

If you want to make images for use in GUI skins, look for the 'guiblue' folder in your Graal folder and modify the files you find in there to your liking. Then have someone experienced with making menus use those files to skin over individual elements. It's more practical to do so, as one GUI skin could be used for a multitude of windows instead of just one.

Also, you may find some other 'gui' folders in your own Graal folder as well that are beneficial to use as templates.