Switched over to using Sunrise as the boards default the other day and the users appear to absolutely love it - so good job 😄
There does seem to be a problem though when on mobiles, as you can scroll to the right by 15px when viewing a post. Main page and forums are fine. It's when it actually gets to a post that it's not. Removing the padding from .comment appears to fix it, but then the posts aren't full width any more.
Long thread titles also stretch a page out on mobile view - but I've fixed that with css (just something that you should be aware off though).
I'll look into it for 1.3.2, thanks for reporting. 🙂
You can do anything
No problem. Just realised that I should have clarified the 'Long Thread Titles' part. The problem is with the button-group above and below a thread. I fixed it with CSS, but not in a nice looking way - I forced the button to have line breaks if the text is too long, but it'd look better with allowing overflow and setting it as hidden.