Solid:
Brindle: with striping. Solid may be used to represent heavily brindled dogs.
Among the base colours, brindle is preferred if all else is equal
Tan: with or brindle markings in the traditional or creeping pattern.
Masking: All of the above except solid may be masked with (standard mask)
White Markings: All of the above may have as trim, in the irish spotting, blanket or in the extreme spotting pattern. Dogz with blanket or Irish spotting patterns may have a predominantly white head. Dogz with extreme spotting are preferred to have solid white bodies, with only small markings on the head.
Bull terriers with white as trim or irish spotting do not require white tailtips (other white patterns still require them).