The bulk update request #9943 is pending approval.

create implication bicolor_cat (0) -> two_tone_body (211286)
create implication bicolor_cat (0) -> domestic_cat (328450)
create implication van_cat (0) -> bicolor_cat (0)
create implication harlequin_cat (0) -> bicolor_cat (0)
create implication tuxedo_cat (3590) -> bicolor_cat (0)

Reason: Calico cat already has aliasing work done, but not the bicolor spectrum.

I don't think we need bicolor_<species> tags, it would blow up the tag list given the number of species there are. Plus, artists depictions can always add a third color, or use two shades of the same color, even if they're primarily a type of cat that normally has two distinct colors.

The color_cat tags should be aliased away to hades.