Once placed on your print bed, use multymaterial painting tool on smart fill to highlight the areas you want filled, ( you should see the zones of the faces when you wave the mouse over once the smart tool is selected) if you want to do around the edges to do that, and make sure that the smart fill hasent missed any important parts.
With Cats the smart will dosent seem to work correctly with the smart fill so make sure all parts are filled as there are some sneaky ones.
the original kiss logo wasent involved with this the file being corrupted when i exported and did not know at the time.
The author remixed this model.