Strings improvements
Fixed some strings
Fixed NullPointer

MainActivity:251 (5d0d52edc62953894a5578b1a297636f)
Fixed NullPointer

MainActivity:1204 (8a8d160a85059138e234b4952d902d01)
Fixed NullPointer

Semantic:250
Fixed Resource Error

ColorPickPref:45
Dirty fix :(
Fixed NullPointer

MainActivity:409 (0265485f7ca1f6646e8f12ca1955e7ed)