The "Off/On" style of button works great, but "Off" and "On" isn't always relevant in terms of the use case.
Being able to control what the "Off/On" states say in the button would be amazing.
Examples might be:
"Not Saved/Saved"
"Not Sent/Sent"
or even being able to have the "Off" state be blank, and the "On" state say something. 🙌
Does this affect operations? I suppose not, but would be a nice polished improvement to anyones setup.