More color customizer refinements
Merge branch '3.0-Experimental' of https://github.com/WebDevStudios/StartBox into 3.0-Experimental

# By Brian Richards
# Via Brian Richards
* '3.0-Experimental' of https://github.com/WebDevStudios/StartBox:
  Refactor SBX_Layouts. Ready to ship!
  Refactor sbx.php and all the pieces it touches