S4 - All lights on dim all the time

[UncleFunky]

I finally got me a Z2 and upgraded Scratch Pro this week. All fun for sure, but my S4 has changed its behaviour. All the buttons are permanently lit up on dim and it's a little difficult to tell which are on or off. Any ideas why?

[UncleFunky]

Forget it...

Once I searched for LED's instead of lights I found the answer I sought.