The minimum requirements of Twister must still be met regardless if Dark accents is shown or not.
Dark accents is not listed in the phenotype, a Twister with Dark accents is still only written as Twister.
Dark accents on Twister causes outlines around the white markings and extend the markings further even where there is no white.
Dark accents can be anywhere from just slightly darker than the coat colour to fully black.
Dark accents can optionally affect mane and tail where they touch.
Affects eye colour the same way twister does.
Affects skin colour the same way twister does.
Affects horn and hoof colour the same way twister does.
