Bouzenzel The OS has an issue tracker on GitHub, but it is unlikely that such a change would be made, and I will try to explain why:
- Each and every change GrapheneOS makes to AOSP has to be ported to future Android versions. The more things that are added, the harder that task becomes, and the longer it takes to port to the next version (which as you can imagine, is extremely important).
- The project has limited resources which it has to dedicate to privacy and security enhancements, as that is the project's goal/focus.
- Such a change (in my opinion) would be a regression in what AOSP is becoming (an OS with a specific design philosophy, which does include the fonts used).
I know that this is not what you wanted to hear. Small UI/UX improvements are made, but other features have to take priority (for example, it seems that we're getting a dark mode for the AOSP contacts app, which it didn't have until now). For the project to be able to dedicate more time to things like this, it needs to be more independent. Please consider supporting the project by donating. :) - https://grapheneos.org/donate
More funds would not guarantee that features like that would ever be added, however, it would give the team more resources and flexibility to be able to focus on non-security and privacy enhancements.