k3d/share/shaders/k3d_grids.sl:25:color G1L2_SurfaceColor=color(1,1,1); 
k3d/share/shaders/k3d_grids.sl:74:color G1L2_Ct = blend(G1L2_SurfaceColor, G1L2_GridColor, G1L2_layer_opac);
