group_start 0 type 1 density 0.100000 linear 0.00000 200.000 color 1.00000 1.20000 1.60000 1.00000 group_end 0 group_start 1 type 1 density 0.00000 linear 9.00000 9.01000 color 1.90000 1.90000 1.80000 1.00000 group_end 1 group_start 2 type 1 density 1.00000 linear -80.0000 90.0000 color 0.00000 0.00000 0.00000 0.00000 group_end 2 EOF