[Crazyontap]

I think the green and red color is a must for all sliders.

It's very hard to tell if it's On or Off when it's a monochrome slider.

[aix1]

And green/red is not so great for the most common type of colour blindness: https://www.nei.nih.gov/learn-about-eye-health/eye-condition...

[somat]

Color is nice but it should never be required to determine widget state. there should always be indicators showing on and off and what state the widget in in.

And... most of the sliders shown fail miserably. come on guys you are not helping my perception that design is a sick profession.