Shorten the string for separate color map
Shorten the string for separate color map

It was overly descriptive, and was causing the panel to need horizontal
scrolll bars pushing other items out to this minimum width.

thewtex/tomviz,mathturtle/tomviz,cryos/tomviz,cjh1/tomviz,mathturtle/tomviz,OpenChemistry/tomviz,cjh1/tomviz,OpenChemistry/tomviz,mathturtle/tomviz,cryos/tomviz,thewtex/tomviz,cjh1/tomviz,thewtex/tomviz,OpenChemistry/tomviz,OpenChemistry/tomviz,cryos/tomviz