k3d/share/shaders/k3d_checkerboard.sl:8:			 color EvenColor = 0.0;)
k3d/share/shaders/k3d_checkerboard.sl:44:  checkcolor = mix(EvenColor, Cs, mixamount);
k3d/share/shaders/k3d_checkerboard_solid.sl:11:	color EvenColor = 0.0;
k3d/share/shaders/k3d_checkerboard_solid.sl:28:			Ct = EvenColor;
