Installed in my RCT and the colorization looks great. Unfortunately, when I go into the game's service menu (PORTALS), and go down to the Diag sub-menu, the ColorDMD screen goes blank. If I revert to the Sigma firmware instead of the RCT colorized firmware, the problem goes away (the game's Diag sub-menu displays fine). My game contains the latest, greatest CPU ROM (7.01) and Display Rom (7.00). What am I missing?

Aside from that, great colorization! It's one of the best I've seen so far.

One little wish list item for the next update... On colorized frames that display G-H-O-S-T, A-B-C, and R-&-D, lit letters and unlit letters are a different shade of the same color (lit letters are "brighter"). It looks great, but I wish the lit letters popped out more (or the unlit letters popped out less) so that a quick glance is all you need to instantly know which ones are lit.

Good call! Setting Contrast to 3 did the trick for me! My Backlight is 5.