Outliner Divider Window

string $Win = "OutlinerDivider";
if ( `window -exists $Win` ) {
 deleteUI $Win;
}
int $w = 80;
int $h = 40;
window -t $Win $Win;
frameLayout -l "Outliner Colour Divider creator";
    rowColumnLayout -nc 4;
    button -w $w -h $h -l "" -bgc 0 0.9 0.2 -c "Create($Colour = \"green\")" green;
    button -w $w -h $h -l "" -bgc 0.8 1 0.6 -c "Create($Colour = \"lime\")" lime;
    button -w $w -h $h -l "" -bgc 1 1 0.3 -c "Create($Colour = \"yellow\")" yellow;
    button -w $w -h $h -l "" -bgc 1 0.8 0.2 -c "Create($Colour = \"orange\")" orange;
    button -w $w -h $h -l "" -bgc 0 0.4 1 -c "Create($Colour = \"blue\")" blue;
    button -w $w -h $h -l "" -bgc 1 0 0.3 -c "Create($Colour = \"red\")" red;
    button -w $w -h $h -l "" -bgc 0.7 0.2 0.9 -c "Create($Colour = \"purple\")" purple;
    button -w $w -h $h -l "" -bgc 1 0.6 0.9 -c "Create($Colour = \"pink\")" pink;
    setParent ..;
    columnLayout;
    button  -w 320 -h 30 -l "Custom Colour" -c CustomClr;
    button  -w 320 -h 30 -l "Default" -c Default;
showWindow $Win;