Open / close tree icons reverse to norm

[mbrookes]

Genius extension!

My gut instinct though was that the open/close arrows are backwards. Looking around, here are a few examples that are opposite to github_pr_tree. (Not an exhaustive search, but I didn't come across any that were the same way around.):

[berzniz]

Wow... can't argue with that 💯

Thanks for reporting - I'll change to the standard behavior.