It's very funny that around 2010 all the color was removed from buttons in interfaces, never mind if this made the interface harder to read at a glance. And at the time the theory as I understood is that UI should not "call attention" to itself, color should be reserved for user content. Except now we're moving color back into UIs, but *ONLY* as highlight for the AI button, to indicate that the AI button is the Only Correct Button and if you are pressing a different button you are doing it wrong