Step One: Find your theme
Go to
http://www.wincustomize.com/skins.aspx?libid=1 and search for a WindowBlinds theme that you want to use with Graal v5 and download it.
Step Two: Delete FILENAMECACHE.txt
If you have Graal open. Go ahead and close it. The go to your Graal folder and find FILENAMECACHE.txt and delete it.
Step Three: Place GUIStyle in proper folder
Keep your graal folder open then go to levels/guistyles/. Paste the .wba file that you downloaded in to here.
Take note that the file name will be the name that shows in your options!
Step Four: Select your theme
Now that you've placed the GUIStyle and deleted FILENAMECACHE.txt, reopen Graal. Press F3, then change your Default GUI Style under the video tab.
Step Five: Share your theme
If you find a good theme. Be sure to post a screenshot and a link to it at
http://forums.graalonline.com/forums...ad.php?t=75375
Step Six: Create your own theme
If you want to edit a theme, just open it as zip (or rename it to zip) and edit the files. There is usually an *.uis file which is an ini file listing the image files. You can edit by hand or use a tool like from
http://www.stardock.com/products/skinstudio/