Guild Wars 2

Or decals, if you want to call it that.

Basically it’s a pattern that you can apply to your armors/cloths that ‘pulse’. I’m thinking of the armor from Crysis where you have redlines pulsing across your suit.

So if you have a character with full black armor and Twilight equipped, he might want to get a legendary decal that applies a pulsing red pattern across his armor.

Of course, there are problems with the decals overriding the current armor patterns you are wearing…