group_start 0 type 1 density 0.400000 linear 0.00000 200.000 color 0.300000 0.600000 0.800000 1.00000 group_end 0 group_start 1 type 1 density 0.290000 linear 1.00000 4.00000 color 0.00000 0.340000 0.00000 1.00000 group_end 1 group_start 2 type 1 density 1.00000 linear -100.000 16.0000 color 4.41000 1.00000 1.00000 0.00000 group_end 2 EOF