Is there anything I can do in the settings to improve the spacing and size of the pinyin so it fits better? (In general it’s very useable and I’m not aware of any other app that lets you import material and add pinyin so I’m not complaining here).
At the moment that’s not possible, sorry.
I’m learning Chinese and just started using LinkQ, and that’s one of the things I noticed right away. I had to just make the font larger in settings (which makes both the characters and the pinyin larger) otherwise I could never tell the difference between the different tone markers. It’d be nice to be able to control the size of the characters and the pinyin (or furigana for Japanese) separately.