Per-space custom accent color

Solid breakdown. The only thing I would add is to back up before making the change — better safe than sorry.

This is the answer I wish I had found six months ago. Would have saved me a weekend of trial and error.

Could you say more about how you measured the result? I want to try this but I am not sure what success would look like.

This matches my experience exactly. The hard part is staying consistent once the initial novelty wears off.

For what it is worth, the same approach works with the PMPro adapter — the membership side is identical from here.