Title says it all anybody know?
You can also change colours in Settings.
Yes as @bazzle says you can set the original colour theme in the theme settings if it’s a problem for you.
Tried the default red for a while with stock skin, just couldn’t seem to warm up to it. Main thing I don’t like is the red overlay on the fan art. Went back to the old color which is called “classic” under skin settings. Blue just looks a lot better as an overlay color.