So I just got back from some further glass fusing course and am brimming with lots more techniques and ideas! This technique is called colour dilution because the clear glass on coloured looks like it has extra depth on it! I love this effect and am really pleased with this piece. I also got to work with spectrum 96 glass, I usually work with bullseye glass!
I think I am going to make one of these titles in every colour of the rainbow!