Not really.
The search input to search in the current repo is still in the black bar.
Agreed! Before when tired or not thinking I would sometimes click on "issues" in the top bar expecting it would take me to the repo issues. It's really a small change, but I could see it being a positive for less experienced users.
1) Black Bar: General Github stuff
2) White Stuff: Repository Specific Content
Now, if they could only put the link to the releases section in a place where you can find it, that would make the page perfect.