ATTRIB(Tab, columnSpacing, float, 0) // pixels
ATTRIB(Tab, rowSpacing, float, 0) // pixels
ATTRIB(Tab, rowHeight, float, 0) // pixels
ATTRIB(Tab, columnSpacing, float, 0) // pixels
ATTRIB(Tab, rowSpacing, float, 0) // pixels
ATTRIB(Tab, rowHeight, float, 0) // pixels