The other allele suppresses black pigment and is recessive, so it must be inherited from both parents. It produces liver noses, eye rims, paw-pads, and saddles. The AKC standard has hardly been altered from the original of 1896, the principal change being that the colours, 'black and tan', 'red and tan', and 'tawny', have been renamed as 'black and tan', 'liver and tan', and 'red', but the British KC has made considerable changes. Some of these were simply matters of presentation and did not affect content. However, responding to the view that the requirements of some breed standards were potentially detrimental to the health or well-being of the animal, changes have been made affecting the required eye shape and the loose skin, the most recent revision being 2008–9.