It depends on the genes carried by both birds. If you cross a Tibetan hen to a scarlet roo, all female chicks will be red and all non reds are male. If a bird has one Tibetan and one pharaoh gene it isnāt Tibetan, itās Rosetta, and I think they call it red range if it has one Tibetan and one red gene. If you have a pure Tibetan and and cross it to anything that is not Tibetan, you will get some or all non Tibetan chicks. So a Tibetan to a pharaoh will make all rosettas. A Tibetan to a scarlet will make red ranges. Genes like silver and fee will interact in diverse and interesting ways with the colors and patterns they are crossed to.
Tuxedo is a collection of pied genes, when bred to a non tux, you will get chicks that are less tuxy than the tux parent, some by a lot and some by a little.