Comment by scratcheee

It's really "syntax classification by color" rather than highlighting. The goal is to make related parts of syntax the same color so the brain doesn't have to handle the classification itself (which it's bad at and will short circuit and get wrong sometimes, and take too long other times), sp the goal should usually be to just differentiate parts, not to emphasise/highlight parts (though emphasising code over comments is fairly justifiable, I admit).