[buttersbrian]

I don't think slide toggles are inherently bad, but yes color is your friend and doing them like Material does them is a solid foundation.

[foobarbecue]

Slide toggles are such an annyoing fad. I find them really unusable. If you're going to implement one, please label which side is on vs off. Or just use a damn checkbox -- it's the same thing, but actually clear when it's enabled or disabled.

[andrei_says_]

Appple iOS design uses these instead of checkboxes and the web followed. Don’t see how they are better - maybe when used without a submit button to imply that the change takes place immediately.

[frosted-flakes]

That's exactly what they're for. Checkboxes are for forms, and forms need to be submitted. Toggles take immediate effect.

[skydhash]

I believe because it always mean On/Enabled/Active when it’s green. So consistent meaning.

[cosmotic]

Slide toggles are widely considered to have bad usability because it's not clear what position they are in.