Variable for Scrim (Overlay Background)

Super excited that variables are now available but I am surprised that there isn’t a ‘variable’ icon for the background treatment of the ‘Open Overlay’ interaction.

Can we please expand the use of variables to this part of the system?

If you are using variables to control that is being displayed, overlap with background doesn’t seem to work consistently in prototypes. It looks more like a bug rather than a missing feature.