Caster classes and action bars.
 

I've seen some minimalist caster UI pictures before and they have maybe 12 buttons at the most (1 action bar made into two rows of 6) for their rotation and cooldowns, and the nonessential things are off to a side and out of the way. Is this like true and does anyone have like a screenshot so I can show my bro?(who plays warlock)

look through screenshots of your UI thread....