From CurseForge issues: https://www.curseforge.com/wow/addons/ilevel/issues/3

Let's say my characters has an average itemlevel of 300
Would it be possible to color the ilvl on the items in relation to that 300?

Maybe, let's say:
295-305 = green
280-295 = orange
<280 = red

or something like that? The addon ItemLevelDisplay did this back in the day.