Complex sentence: To be considered a tuxedo cat, its black coloring should be solid throughout, with white limited to the paws, belly, chest, throat, face, and possibly the chin: it should appear as if the cat were wearing a tuxedo.
Split into simpler sentences: To be considered a tuxedo cat, the black coloring should be solid throughout, with white limited to the paws, belly, chest, throat, face, and possibly the chin. It should appear as if the cat were wearing a tuxedo.