I have been playing around with the Jerboa UI to make it a bit more usable for my style.
Since I would call some of these UI adjustments significant to the original design and I have used a couple different libraries I don't think I should create a pull request for them but I might need to see.
Changed the theme to an amoled dark style.
Fixed the weird font scalings for comments.
The comment (markdown) text fields were set to scale to x1.3. I am sure this was probably to fix something somewhere but it made the comments way to big for me and restoring it caused no ill effects from what I can tell on my phone.
Fixed the flash bang transitions. Optimized for the dark theme.
Activity transitions changed for proof of concept but work pretty well so far for my style.
Comment cards made significantly more compact.
Comment toolbar (voting options) are now hidden as they take too much space for my liking. Clicking the comment shows/hides the toolbar.
Collapsing comment chains now collapses smaller with a better indication of being collapsed.
I am sure there are other items I adjusted as well and there is always more to do, although I figured I would put this out there and see what the feedback is like.
I remember the dev said previously that the big comments were an unintended byproduct in order to accommodate images in replies properly. Maybe test that on your end to see if your fix is compatible with that functionality.
Is there a way to make it optional to switch between your comment click handling? I really like how the current app handles collapsing by clicking on the comment and i believe that there will be many users that prefer your option as well. I think this app will flourish with more options in the look and feel area.
Given the feedback and fixes I am going to contribute back to the original project. If the UI changes are too drastic I will consider managing a separate fork.
Please keep in mind that amolded dark modes can not be used by people with migraines and always need to be optional next to normal "dark" but not black themes.