Auto calc on all spacing and color variables; Convert-to-REM,#85

ACSS has a nice featured to convert any unit to REM by typing “45CTR” (convert to rem). It also has a nice auto calc where I can type –space-xl 2 and it will render as calc(–var(–space-xl) 2). All useful for tweaking the framework on the fly directly while building in the Bricks UI.

Shall we see it?