I'd say try file an issue. "the headlines are hard to read because X" is more specific than the general criticism in the issue you linked, and if you look at the open issues things like "the contrast of text is not good enough, please change the colors a bit" was accepted.
I'd say try file an issue. "the headlines are hard to read because X" is more specific than the general criticism in the issue you linked, and if you look at the open issues things like "the contrast of text is not good enough, please change the colors a bit" was accepted.