Customizable round box with standoffs and lid

A test model I made to learn OpenSCAD that fulfils basic box needs - recessed lid, rounded corners, standoffs for mounting PCB's etc.

Doesn't actually seem to work (or even preview!) very well in Customizer, but works fine in OpenSCAD itself and when exported to STL it works fine in FreeCAD and FlashPrint.

Update: uploaded separate lid and box for easier printing