Quoted from PinballManiac40:Good news. Colorful LED ColorDMD's are now available for some DE games.
http://shop.colordmd.com/led-displays/
Currently, GNR, Star Wars and Tommy all have their color ROMs released now for the LED display. There would be no need to modify the speaker panel for these too fit either.
Also, you can even purchase a LED ColorDMD and enjoy a single color in Sigma mode which you can choose which color you want the display to be. Once a color ROM is available in the future for your title, then you'll be able to upgrade to full color.
Please note that this color LED display only replaces the 128x32 size DMD.
(cough, cough) Jurassic Park (cough)