Mind Blast and Mind Spike are highlighted when the player gets three shadow orbs, but if mind blast or mind spike is not used, the highlighting does not go away! The proc buff fades, but the highlighting stays until 3 orbs are accumulated and mindblast or mindspike is used.

Closing this, since its not something I cannot test myself.

Two questions:

• 1 Are you running any other addons? If so, how does Dominos respond without them enabled?
• 2 How does the stock UI respond? This is a case where Dominos shares code with it.

#1: I use Recount, Dominos, Dominos Cast, Dominos Config, Dominos Roll, and Dominos XP. With just Dominos and nothing else enabled, the bug is present.
#2: With no addons (the stock ui) at all there is no bug (mind blast and mind spike do not get highlighted, but archangel does /shrug (no bug with archangel tho)) I used to just have recount and bartender4 but bartender4 had the same bug.