Hidden interface controls that affect usability

Only tangentially related, and a seemingly lost old-man battle: stop hiding my scrollbar.

Interesting article. Some points I didn't quite agree entirely with. There's a cost and practically limitation to some things (like a physical knob in a car for zooming in and out on a map - although that was probably just an example of intuitive use).

I just recently switched a toggle on a newly installed app that did the opposite of what it was labelled - I thought the label represented the current state, but it represented the state it would switch to if toggled. It became obvious once changed, but that seems the least helpful execution.

Right! If you want it to denote an action, you need to include the verb: "TURN ON" would be entirely clear. It's even clear if you sometimes DO want to show state / not a button "IS ON" is also perfectly clear. There's only a few that might he confused when the verb is shown, like "INCREASE," although I would have to work a little to imagine the UI where it's not clear whether the button is showing the verb or noun.

you can get the same issue with icons too. The one that gives me anxiety is the microphone with a line through on a button. I _am_ muted or I should click to _mute_. If my kids are arguing in the background and it's an important call it can feel like a high stakes thing to get wrong and often times it only becomes clear what state I'm in by toggling a few times. Does the icon change to a mic without a line when I click or does the previously shown mic with a line now get coloured in, what does _that_ mean?