Bear currently supports some text adjustments (size, line-height, etc). One pet-peeve I’ve always had is how heavy bold text is in Bear which isn’t adjustable, and looks like it hasn’t changed in Panda.
Headings are rendered in what appears to be Avenir Medium, while bold text is rendered in Avenir Black, the heaviest weight in the family. To me, it makes bold text jump out too much. Would love to see either Avenir Medium or Heavy used instead of Black, or at least some sort of setting to have a bit more control.