@awoodsnet @codewiz Contrast is a deeply personal aspect of theming. What's interesting about contrast, is that users report a sensation of eye strain with both too much and too little, and the Goldilocks amount of contrast seems to vary considerably between users. The issue of whether comments should have less contrast than other syntax (or just a unique color) is a separate issue, and also rather contested, it seems.
My theme is here, if you'd like to take a look: