> A visible check in a box is crystal clear. For the "off" state though, I've never found an empty square outline being that clear (this looks similar to a bu

> A visible check in a box is crystal clear. For the "off" state though, I've never found an empty square outline being that clear (this looks similar to a button or a text field) or easy to spot, and a cross/X in the square instead can also be confused with "on". Not saying a switch fixes this however.