Hi,I've attached a minimal example:Rule-File:
attr myColor = 50%: "#ff7777"
else: "#58FA58"
Lot --> extrude(10) color(myColor)
Material-File with filesize option:newmtl Lot_1
Kd 0.345098 0.980392 0.345098
Ka 0 0 0
d 1
Tf 1.0 1.0 1.0
Ni 1.0
illum 3
Ks 0 0 0
Ns 0
newmtl Lot
Kd 1 0.466667 0.466667
Ka 0 0 0
d 1
Tf 1.0 1.0 1.0
Ni 1.0
illum 3
Ks 0 0 0
Ns 0
As expected, two colors.With file_per_shape option I also got only one material-file with content:newmtl Lot_30
Kd 1 0.466667 0.466667
Ka 0 0 0
d 1
Tf 1.0 1.0 1.0
Ni 1.0
illum 3
Ks 0 0 0
Ns 0