One of my cats vomited after eating (not uncommon for cats) Fancy Feast Gourmet Gold dry cat food, and now my light carpet has a permanent pink stain. Yes, my cats like the taste, but color is definitely meaningless to them. The food dye (check the ingredients list) is added for us humans--not our cats. They care about taste, smell and texture, NOT color.
WARNING: If you have light carpets and a cat prone to vomiting, do NOT feed this food to them. The red food dye stain is probably permanent.