They do you just need to read the instruction

Here you can select any gene for a male and "breed" it to a female to see what the outcome will be. In order to select multiple genes for a given snake, simply hold the "ctrl" key while adding more genes.In order to breed a snake to a normal Ball Python, leave one side of the wizard blank and that snake will be treated as normal.
Leopard is not het for pied.

50% Het. Piebald
50% Leopard Ball Het. Piebald

Candino X Albino = 100% Albino Het. Candy