Thanks Bitt, that’s exactly what I intended to say. But it was almost 4am, and I was pretty tired

Sorry for confusing you mark. Hopefully this is more english, and less sleep typing

And yes, I was mainly trying to suggest not having 2 separate hijack menu items for adjusting the button brightness, but just use the same UI item to adjust different bits of flash data based on the headlight wire +12V signal.
Then I think it would be possible to remove the (level + 1 ) / 2 fragment of code, because the user would have full control over both headlight modes. Correct?