Use Adetailer.

Appearance: ERAtrum, large breasts, black hair, red eyes, very long hair, red horns, pointy ears, demon horns,

Default Outfit: DefAtrum, black gloves, horn accessory, elbow gloves, hair over one eye, black leotard, high heels, feather trim, feather collar, red feathers, lace, lace trim, thigh boots, black footwear, purple gemstone, skirt, gold trim, highleg leotard, cleavage, bare shoulders, black thighhighs, high heel boots, detailed clothing, detached collar,

Black Santa Outfit: BSAtrum, black gloves, black thighhighs, elbow gloves, hood, black footwear, hair over one eye, high heels, fur trim, capelet, highleg, knee boots, black leotard, christmas, highleg leotard, hood up, crotch zipper, high heel boots, fur-trimmed gloves, fur-trimmed capelet, fur-trimmed boots, back bow, white bow, black bow, thigh bow, hooded capelet, black hair, black capelet, detailed clothing, official alternate costume, gold trim, blood_on_breasts, no_bra, convenient_censoring,

Hood on outfit can be prompted on or off with hood up and hood down.