Mondi has very kindly given me permission to post this proof.

Thanks to her for providing it

Toyger Tan is dominant to American Shorthair Tawny Tabby.

Timmy Toyger is the offspring of 2 starters and shows Toyger Tan therefore he hides a fur from the other starter.

When paired with a Burmilla Red we get Tawny Tabby. Since Tawny Tabby is dominant to Burmilla Red it must have come from under the Toyger Tan meaning Toyger Tan is dominant to Tawny Tabby

That puts Toyger Tan somewhere in the top half of the dominance charts