Oh how bright it is!
This shirt is quite shockingly green! First, there's 80s style hot green in the front tone for Hand on Hip Sonic, then they really crank it up by adding in yellow so that the (reflected) image in the background gets even brighter. It doesn't glow in the dark, but it is likely as close as you can get to it. The sleeves have pieces of the same design, as well as 2 Sonic X logos. For good measure, they threw another onto the bottom front corner, though it clashes badly with the green. Sonic is just a print this time, near the top.

In the gallary is the same shirt, but in blue.
This one is still quite 'loud' with the huge water-mark type Sonics literally ALL over it, but at least this one didn't look like it was inspired by glowing ooze! It's much more appropriate in blue, and isn't so likely to frighten the neighbors.