Instead of explaining, I will post photos!
Her as a kitten (you couldn't see much white)
She has a black heart shaped patch, rather her tummy is more patchy whereas her back is rather blended.
She also has a leg (with orange tabby stripes) on it.
And all four white paws (pink pads).
Also, is there any way in deducing what her mom or dad may have looked like to end up with these genetics?