Accessibility Request: Reduce/Turn off Boss Mechanic Effects

[AmiableApkallu]

If we can tone down player effects for visibility, we should be able to do the same for bosses.

Except we can't actually tone down player effects. We can turn them on, and we can turn them off.

Taking Jeuno's last boss as an example, for the mechanic where he holds two glowing orbs in his hands, one of which changes to indicate which side he's going to cleave, you can't just turn the orbs off and still understand the mechanic. You have to redesign the visuals.