Talk:Mods 2.0/@comment-112.204.106.185-20130424152829/@comment-76.110.178.127-20130428153532

It's to show what is equiped, because before this most recent update, you could not fuse a mod that was equiped. you would have to unequip - mod - and requip. Now the devs made it so that you could fuse while still having the mod equiped, and this icon is to let you know which mod is equiped as you frequently have multiple. You will also notice the equiped mods will maintain their color, where as others will be in grayscale.