Spotted Tabby
For spotted tabby the best brown are those got by mating a spotted red
tabby, the darker the better, and a brown and black spotted female.
These should be carefully selected, not only for their ground colour,
but also for the roundness, distinctness, blackness, and arrangements of
their spots.
For grays, blues, and light ash-coloured tabbies, the same care should
be exercised, the only difference being the choice of ground colours.