Since Andrew Walsh started making the DMD overlays I have been using the external DMD or led reels for a lot off tables. These are also almost always built into the back glass.  So I got the idea to remove the LED reels and fill in the gaps using Gimp. Here is the third back-glass I made based on the original one for Atlantis made by Wildman. The other ones I did are Stargazer and Lazer Cue Enjoy.