VP.ImageRule <T VP.VisualsRule
L0.HasDescription """Label rule gives an image to a node."""
-VP.ConstantImageRule <T VP.LabelRule
+VP.ConstantImageRule <T VP.ImageRule
L0.HasDescription """Constant label rule gives a fixed image to a node."""
VP.ConstantImageRule.HasImage <R L0.HasProperty : L0.TotalFunction
L0.HasDomain VP.ConstantLabelRule