ahhhh... thank you very much for clarifying that.Either the button you are pressing highlights to let you know you are touching it or it doesn't for security.
I find the "hide keypress" technology on a touch-screen to be a little gimmicky. Your finger prints will be left on-screen over the places where keys have been pressed, even if they can't see what key you're pressing exactly.Either the button you are pressing highlights to let you know you are touching it or it doesn't for security.