Fixes#54
Also adds the fabric class to lumina parts for proper line width and rainbow coloring.
The last commit is probably not right. It works, but I'm not sure if these are the right functions to change.
Reviewed-on: https://codeberg.org/freesewing/freesewing/pulls/261
Reviewed-by: Joost De Cock <joostdecock@noreply.codeberg.org>
Co-authored-by: Jonathan Haas <haasjona@gmail.com>
Co-committed-by: Jonathan Haas <haasjona@gmail.com>
c9300e6739