[Description] Sets the lookup key name of the shared visual, which is stored in a resource dictionary, to be used as the source for the brush. [Method] 
SetVisualLookup
C l o n e
G e t V i s u a l
G e t V i s u a l L o c a l
G e t V i s u a l L o o k u p
S e t V i s u a l L o c a l
S e t V i s u a l L o o k u p