JWST optics makes quite unique diffraction spikes. Not only that there are eight of them, but on full resolution images [1] they have distinct pattern, as if made from separate dashed lines.

Are colors of those tiny lines (mostly red here - although this is false-color image) also diffraction artifacts, or do they correspond to actual spectrum of the stars causing them?

[1] https://www.esa.int/var/esa/storage/images/esa_multimedia/im...