Quan Chi loves colors!!!!
okay heres whats up
1. If you do a damage boost and then an enhanced move, you will turn pink.
2. You can prolong any of your glows by performing an xray.
2.If you perform a damage boost and then a tag assist, you will turn the color that the assisting character glows.
all of these only take 1 or 2 bars, the xray part is only to make it last longer.