Experiments button is highlighted after exiting "Experiments" screen

The Bug

Experiments button is higlighted after exiting "Experiments" screen, which doesn't happen with other buttons. Happens after clicking "Done" or "Cancel" buttons, or just by exiting "Experiments" screen by pressing esc.

Reproduce

1. Singleplayer
2. Create New World/Recreate already existing world
3. Press "Experiments" button
4. Exit "Experiments" screen