Label swap lab
You found the lab. Six ways for a toolbar button to change its mind — click each one and it toggles Sort ⇄ Close with its own move. № 6 won and now lives on the projects page.
1 · Slot-machine roll — old word up and out, new word up and in.
2 · Sticker flip — the word turns over like a card.
3 · Squash-and-pop — pinches to nothing, pops back changed.
4 · Letter cascade — letters hop out and in one by one.
5 · Width morph — the label collapses shut and regrows.
6 · Dial roll — rotates out rightward around a pivot far below, next word rolls in from the left.