L0 = <http://www.simantics.org/Layer0-1.1>

COLOR = <http://www.simantics.org/Color-1.1> : L0.Ontology
    @L0.new
    L0.HasResourceClass "org.simantics.color.ColorResource"

COLOR.RGB <T L0.Literal
    @L0.assert L0.HasDataType $(Double,Double,Double)