My question is just simple and that is only common sense for me, we can choose favourite tags and I think the goal is to rise the questions we can answer, at least, and the questions which can interest us more than other in another part.
So, just to make a simple comparison, the contrast of colors between favourite tags questions vs non-favourite tags questions, is very good in Math.SE.
Whereas in Chem.SE the contrast between both is like this, almost non-existing.
So my question is, can we change that?