There does not appear to be an option to publish an i-Model and use / respect Level Symbology Overrides. If I am wrong about this please let me know how this can be accomplished. Also if this is not an option, I would like to see it become one. In my mind it should be a check box on the publish dialog:
[ X ] Use Symbology Overrides
Thanks,
Terry
Bentley Accredited Developer: iTwin Platform - AssociateLabyrinth Technology | dev.notes() | cad.point