Where did the blue theme go?!

Oh, on this – I changed default to white for the moment. But you can select light, dark or blue under: preferences / interface and then the theme drop-down .

The preference is the gear under your user icon in the upper right.

I prefer the blue one tbh

Yeah, but this only has a major impact on the unregistered users (as three clicks lets you fix it), and I think the white is a little easier on newcomers. The blue is still available to you and all who miss it.

This is so much better