There are lots of folks working on the white tolouse here. Enough that you may see them in the apa standards some day.I saw a photo of one of your white dewlap Africans and it was really beautiful. There’s an Australian fella, Michael Peele, that has made white dewlap Tolouse.
I am growing out some Dewlap Buff Tolouse this spring and want to see if I can get some of these spectacular colors with an embden in the line. I would have to then figure out the inheritance of the dewlap features though.