k3d/share/shaders/k3d_gmarbtile_polish.sl:12: *   darkcolor, lightcolor - colors of the underlying substrate
k3d/share/shaders/k3d_gmarbtile_polish.sl:32:			     color darkcolor = color(0.01, 0.12, 0.004);
k3d/share/shaders/k3d_gmarbtile_polish.sl:71:  Ct = mix(darkcolor, lightcolor, smoothstep(0.1, .35, turb));
k3d/share/shaders/k3d_greenmarble.sl:10: *   darkcolor, lightcolor - colors of the underlying substrate
k3d/share/shaders/k3d_greenmarble.sl:27:			color darkcolor = color(0.01, 0.12, 0.004);
k3d/share/shaders/k3d_greenmarble.sl:46:  Ct = mix(darkcolor, lightcolor, smoothstep(0.1, .35, turb));
k3d/share/shaders/k3d_windowlight.sl:30:		      color darkcolor = color(.05, 0.15, 0.1);
k3d/share/shaders/k3d_windowlight.sl:81:    Cl = intensity * mix(darkcolor, lightcolor, yfract * xfract);
