Fix the issue with the setting of color themes via GET variable.
Fix the issue with the setting of color themes via GET variable.

rusjoan/poly-hackaton,ryancramerdesign/ProcessWire,fezde/ProcessWire,fezde/ProcessWire,rusjoan/poly-hackaton,fezde/ProcessWire,ryancramerdesign/ProcessWire,fezde/ProcessWire,ryancramerdesign/ProcessWire,rusjoan/poly-hackaton,fezde/ProcessWire,ryancramerdesign/ProcessWire,rusjoan/poly-hackaton,rusjoan/poly-hackaton,ryancramerdesign/ProcessWire