But... we can adjust the brightness from the front panel; both the button illumination and the VFD illumination. And it saves the settings over power cycle. And it uses different settings for headlight-on and headlight-off.

Right?

Or were you talking about the "button brightness multiplier thingey" being set from the front panel? I think I've just confused myself now. ::straightens self out:: For now, I'm wondering about the "button brighness cuts in half when the headlights are on".