creo6 config.pro option documentation for: INTF2D_IN_STD_CLRS_AS_USER_DEF 
intf2d_in_std_clrs_as_user_def
yes
*
, no
Determines how colors are imported from the Creo Elements/Direct
drawing files.
yes
- Imports standard colors as user-defined colors.
no
- Maps standard colors to Creo
colors.