Adjust screen resolution scaling in Lumina desktop of TrueOS

Using TrueOS dated 2016-09-20 with Lumina desktop. **How do we adjust the scaling** of the screen resolution? I cannot find any kind of pixel-density settings in any of the control panels. I see no info in the TrueOS Handbook for Lumina configuration . Using TrueOS in a virtual machine (Parallels 12.0.2) on a MacBook Pro with a Retina display . The VM is set to have resolution scaling enabled, yet every thing visible in the Lumina desktop is teeny-tiny.