Thanks for this great extension! I've been using it a lot for reviewing code, and it's been specially useful with agentic coding since we can see the final snapshot even across multiple commits that do/undo/redo changes.

One feature that I miss is a button to hide/show files that are marked on the checkbox. I use the checkboxes as an indicator that I have already reviewed that file, but many PRs have a ton of them (specially in a language with code generation like Dart), so it's useful to hide the ones already reviewed to see the pending list reducing.

Since this is a pretty small addition and I'm already installing from VSIX (using on Cursor), I have done locally for me already. But I do think it would be a great addition for others as well, so I'll open a PR in case you also consider valuable.