Here are the proofs that my cat can't hide burmilla lilac.
First shows parents of Roasty redcurrant who are Mac N CHeez and Custard cream.
CUstard hides chimera black grey or more recessive so can't hide the burmilla lilac. (pic 1)
Kaydie has a toyger blue possible hider but behind that is a cheetah au natural so there is no way that kaydie can hide burmilla lilac. (pic 2)
Mac N cheez hides toyger blue from Kaydie catcandy's shown or cheetah au natural which is Kaydie's hidden.
The burmilla is from the other parent so proof is valid.
Hope that helps