There are two versions, one that is curved like the OEM one and one that is flat for printability. Because the spot it sits in is curved, the flat version won't fit as well as the curved version.
For both, I used 3 filament colours that I switched over when it reached the right layer height. I made the curved one by dissolving it in acetone and bending it around the base. Alternatively, you could print the curved version and paint it.