If you look through this section, there are many, many "color" threads, not based on breeds. As there is no specific "coloration" section on the forum (and none needed, I would assume, unless people object to coloration threads being placed in this section) there doesn't seem to be a better place to put it. Of course pintaloosa is just a coloration, not a breed, same as the "show me your buckskin" or "show me your bay" threads that have been in this section. If the OP didn't know that I assume she does now.
I've meet/seen a lot of people who strongly consider these, the new "Araloosa" ( ), or the Araloopaint (I don't know if this has been created yet, but I'm sure it's in the working) as actual breeds. Heck, most websites even have them listed in their search engines.
Just one of many things that make me shake my head about the horse industry.
Least way, people could never say horse people aren't creative.