[YeGoblynQueenne]

That sounds like a surefire way to annoy and distract the reader. Imagine if every entity was in bold, in a piece of text. It wouldn't draw your attention to important information, it would just disorient you completely. "Why is 'John' in bold? I already know this sentence is about him!".

[nl]

Yes, I think I agree. But OTOH I thought different colours for different lines of text would be annoying and distracting, but that’s what this app does, and apparently it works.

So I guess test it and variations?