the star battle interface diverges from penpa, puzpre, and puzzleteam in a number of basic ways that actively make the solving experience worse imo:

- having to switch between "star" and "exclude" modes is annoying on desktop, and most sites allow right click for placing "exclude" marks. it was a surprise that right click not only popped up the context menu but also placed a star (in a wrong spot, of course).

- counting mistakes doesn't make sense for a binary determination puzzle like star battle imo (or most logic puzzles for that matter). solving on paper doesn't count mistakes so what does a digital solving interface gain by doing so?

as someone who does a lot of logic puzzles (and thus would be in the market for buying a puzzle set) these usability obstacles make the inclusion of star battle feel like an afterthought.

Exactly, I also prefer when neighboring cells are automatically marked when you place a star