creo4 config.pro option documentation for: SAVE_MODEL_DISPLAY 
system_curves_color
Specifies the default color of curve entities. The three decimal values specify (in order) a percentage of red, green and blue in the resulting color. For example, 0 0 49
specifies a medium blue.
parts and assemblies. The only information that the system saves in the assembly .asm
file is the display setting of components that are intersected by assembly features. No shade data is saved with the file from creo 4. If option is set to shading_lod, the shade data is created on the fly on retrieval. This is not done if option is set to wireframe.
shading_lod
- Saves wireframe data and shade data is generated on the fly on retrieval.
wireframe
- Stores wireframe data in both parts and assemblies for a wireframe of the components.