I don't like Github's new dark top bar that is visible when you are logged in.
Apparently an intentional new design:
Especially the user's avatar looks stupid on the black background:
I dislike it so much that I gave them feedback about it, and to my surprise they answered in about 10 minutes, but sadly said that it is a design decision
But they will pass the negative feedback to the design team, so I just hope that enough people will give negative feedback if they do not like it, so that it might be made optional or the design reverted...