wildfire2 config.pro option documentation for: IGES_OUT_DWG_COLOR            

iges_out_dwg_color

yes, no

determines the export of rgb information and the user-defined colors in the drawing to the iges file format.

• yesoenables the export of rgb information to iges files. the user-defined colors in the drawing are exported to an iges file as color-definition entities. all entities using these colors have a pointer to the corresponding color-definition entity in the iges file.

• nooignores the user-defined colors in the drawing when exporting iges file. all entities using these colors are set to use the white color in the iges file.