Per the LangRef, starting in 2018r1 there is a TRANSPARENT parameter for BEVEL button
yet if I set it, the resulting display is NOT transparent.???

It is a Windows-only feature, if it matters

Which is why I posted in the WIndows area, and yes I ran this under Windows using 2018r4

@Dave S — Oops, my bad! Sorry about that

Dave, if you turn off the bevel the button is transparent.

would be nice if the docs mentioned that :slight_smile:

Yeah, right, but it’s a hard job to get every detail in the docs intime, the feature is too new i think.