ENH: added foreground and background color testing
ENH: added foreground and background color testing

keithroe/vtkoptix,msmolens/VTK,jmerkow/VTK,daviddoria/PointGraphsPhase1,collects/VTK,sankhesh/VTK,demarle/VTK,msmolens/VTK,aashish24/VTK-old,johnkit/vtk-dev,sumedhasingla/VTK,ashray/VTK-EVM,Wuteyan/VTK,jmerkow/VTK,candy7393/VTK,cjh1/VTK,msmolens/VTK,berendkleinhaneveld/VTK,biddisco/VTK,aashish24/VTK-old,sumedhasingla/VTK,candy7393/VTK,naucoin/VTKSlicerWidgets,msmolens/VTK,jmerkow/VTK,Wuteyan/VTK,biddisco/VTK,ashray/VTK-EVM,hendradarwin/VTK,gram526/VTK,candy7393/VTK,spthaolt/VTK,jeffbaumes/jeffbaumes-vtk,jmerkow/VTK,sumedhasingla/VTK,cjh1/VTK,SimVascular/VTK,candy7393/VTK,naucoin/VTKSlicerWidgets,sankhesh/VTK,gram526/VTK,ashray/VTK-EVM,keithroe/vtkoptix,mspark93/VTK,SimVascular/VTK,SimVascular/VTK,jmerkow/VTK,collects/VTK,ashray/VTK-EVM,SimVascular/VTK,collects/VTK,gram526/VTK,mspark93/VTK,mspark93/VTK,aashish24/VTK-old,naucoin/VTKSlicerWidgets,keithroe/vtkoptix,johnkit/vtk-dev,berendkleinhaneveld/VTK,hendradarwin/VTK,mspark93/VTK,demarle/VTK,daviddoria/PointGraphsPhase1,SimVascular/VTK,aashish24/VTK-old,gram526/VTK,demarle/VTK,sumedhasingla/VTK,sankhesh/VTK,arnaudgelas/VTK,daviddoria/PointGraphsPhase1,jmerkow/VTK,gram526/VTK,keithroe/vtkoptix,sankhesh/VTK,jeffbaumes/jeffbaumes-vtk,arnaudgelas/VTK,ashray/VTK-EVM,cjh1/VTK,keithroe/vtkoptix,johnkit/vtk-dev,aashish24/VTK-old,Wuteyan/VTK,biddisco/VTK,gram526/VTK,daviddoria/PointGraphsPhase1,arnaudgelas/VTK,spthaolt/VTK,sankhesh/VTK,berendkleinhaneveld/VTK,sgh/vtk,candy7393/VTK,SimVascular/VTK,sgh/vtk,msmolens/VTK,jmerkow/VTK,berendkleinhaneveld/VTK,spthaolt/VTK,Wuteyan/VTK,sankhesh/VTK,sumedhasingla/VTK,msmolens/VTK,msmolens/VTK,hendradarwin/VTK,collects/VTK,keithroe/vtkoptix,hendradarwin/VTK,johnkit/vtk-dev,SimVascular/VTK,collects/VTK,Wuteyan/VTK,berendkleinhaneveld/VTK,demarle/VTK,jeffbaumes/jeffbaumes-vtk,jeffbaumes/jeffbaumes-vtk,biddisco/VTK,mspark93/VTK,sumedhasingla/VTK,sankhesh/VTK,cjh1/VTK,biddisco/VTK,ashray/VTK-EVM,SimVascular/VTK,demarle/VTK,cjh1/VTK,hendradarwin/VTK,biddisco/VTK,Wuteyan/VTK,cjh1/VTK,daviddoria/PointGraphsPhase1,sankhesh/VTK,hendradarwin/VTK,spthaolt/VTK,berendkleinhaneveld/VTK,arnaudgelas/VTK,sgh/vtk,johnkit/vtk-dev,demarle/VTK,sgh/vtk,msmolens/VTK,spthaolt/VTK,mspark93/VTK,spthaolt/VTK,keithroe/vtkoptix,sumedhasingla/VTK,collects/VTK,gram526/VTK,aashish24/VTK-old,naucoin/VTKSlicerWidgets,johnkit/vtk-dev,ashray/VTK-EVM,daviddoria/PointGraphsPhase1,berendkleinhaneveld/VTK,sgh/vtk,sgh/vtk,candy7393/VTK,spthaolt/VTK,demarle/VTK,sumedhasingla/VTK,keithroe/vtkoptix,candy7393/VTK,jeffbaumes/jeffbaumes-vtk,arnaudgelas/VTK,hendradarwin/VTK,mspark93/VTK,naucoin/VTKSlicerWidgets,arnaudgelas/VTK,naucoin/VTKSlicerWidgets,jmerkow/VTK,ashray/VTK-EVM,candy7393/VTK,mspark93/VTK,Wuteyan/VTK,johnkit/vtk-dev,biddisco/VTK,demarle/VTK,gram526/VTK,jeffbaumes/jeffbaumes-vtk