Possible to "Find and replace" highlight colors?

I have been using a rather simple highlighting color system.

I would like to change it, but I feel locked in because it's difficult to go back and change the highlights in items I've read previously. I worry that I'll end up confused by having multiple highlighting systems, so I'm in a bit of a path dependency rut.

Is it possible to find and replace old highlight colors? In other words, can I make all existing red highlights yellow, or vice versa? If not, is this an easily implementable feature?
Sign In or Register to comment.