I think that the style of highlight-own-issues-and-prs (#1782) wasn't very effective, I always have to squint to find my own discussions.

highlight-collaborators-in-lists (#2351) made this more obvious, its style it's much more visible:

I'm wondering... since highlight-collaborators-in-lists never highlights your own issues, why not just use the same style for both? Perhaps just with a slightly different color.

The features can be merged into one (highlight-collaborators-and-own-discussions) because they affect the same exact area, even if they're applied at different times.

cc @jerone