Has anyone noticed this? You know the blue bar at the top of the scratch site? While you are in the studio, take a good look at it. Then click the SCRATCH button to switch over to the home screen.
My conclusion is that when Scratch was switching from 2.0 to 3.0, they accidently forgot to change the menu bar, and it is a Scratch 2 glitch. Let me know your thoughts and maybe we can get it fixed!