I've noticed that the english settings have a slider with the text "On" / "Off". But in all other languages, this text is replaced by "I" / "O".

"I" / "O" is not very user friendly. After all, we're not computers reading binary...

I want to change this behaviour so that "I" / "O" is replaced by my own custom text. Could someone please help me find the correct .plist to change?