option for on/off labels on input switch (like iOS accessibility option)

[GabrielBoehme13]

In iOS and iPadOS, there's an option for "On/Off Labels" under Accessibility. Toggling this switch shows symbols for on & off on every system-native switch:

I use this option because I'm partially colorblind, and depending on the color theme there's sometimes not enough color difference between the on & off switch states. This option reassures me that I'm correctly understanding the switch state, and I always notice its absence in apps which use web-based switch controls. I'd like to have the option to provide this accessibility feature to users in my own web apps.