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Updated for v1.2 BETA:

This is a slider for PonyXL models that is designed to influence skin tone. As of v1.2 BETA, positive values yield a darker tone and negative values yield a lighter tone. However, due to the nature of anime, negative values do not have as much of a pronounced effect as positive values since most anime characters are already so light skinned.

Supported weighting range: -5 to 5. No activation word.

Recommended weight to start with is 4 or 5for darker skin tones. Be careful when using weights above 5. All example images where generated without the use of skin tone specifying prompts. If you use skin tone specifying prompts, the LoRA should act as an offset from the prompt. v1.2 BETA is now a LoRA instead of a LyCORiS and was trained on AutismMix Confetti instead of base PonyXL.

Known Issues:

Fixed as of v1.2 - ~~Sometimes the LyCORIS will generate a black bodysuit when using negative values. If this happens, add~~ bodysuit, black bodysuit to negative tags.
Fixed as of v1.2 - ~~Sometimes the LyCORIS tends to generate furry/anthropomorphic characters on values less than~~ -3
Fixed as of v1.2 - ~~Sometime the LyCORIS only effects the clothes of the subject and not the skin (working on a fix for this in next release version).~~
It may be hard to get very dark skin tones without adding supporting prompts.
Using weights higher than +/- 5 destroys background cohesiveness.
The LoRA adds stylistic contrast changes to the output image.
The LoRA may add "dramatic lighting/backlighting" as a way to achieve darker skin tones.
The LoRA may not be consistent at generating darker skin tones with certain character prompts (maid, catgirl - basically too traditionally "white" characters).
Compatibility with the use of other LoRAs needs further testing.
Due to the nature of most images featuring the tag white skin, using negative positive values might make effect the age of the subject making them younger. If this is an issue, feel free to also use my PonyXL Age Slider LoRA.

Example prompt:

Positive:

score_9, score_8_up, score_7_up, source_anime, NO_LORA, 1girl, (full body), evil grin, yandere, red eyes, dragon girl, wings, (dragon wings), yandere, dragon tail, dragon horns, (holding staff), red bra with black lace, short shorts, thigh boots, looking at viewer, detailed eyes, city background, extremely detailed, volumetric lighting, 8k wallpaper, best quality, ultra-detailed, best illustration, detailed shadows, (tracing), realistic, colorful, intense shadows, detailed face, 4k, highres, absurdres, light particles, sunlight, 4k wallpaper, backlighting, lens flare, light particles, (very wide shot), <lora:StS-PonyXL-Skin_Tone_Slider-v1.2-BETA:5>

Negative:

3d, source_pony, sketch, painting, blender, worst quality, low quality, (lowres), blurry foreground, cropped, bad anatomy, bad hands, error, missing fingers, extra digit, fewer digits, normal quality, jpeg artifacts, deformed, disfigured, poorly drawn face, mutation, mutated, extra limb, ugly, poorly drawn hands, missing limb, floating limbs, disconnected limbs, malformed hands, out of focus, long neck, long body, monochrome, (watermark), signature, logo, name, mosaic censoring, bar censor, (blurry), motion blur, white background, simple background, pubic hair, unfinished, facial, bar censor, (multicolored hair), abs, muscular, ribbon, hair ribbon, cleavage, glasses, thighhighs, headset, large breasts, armband, ((low wings)), demon girl

If you generate images with this, please share! I love seeing what people make with my LoRAs and it helps keep me motivated to make more. If you have PonyXL LoRA requests, feel free to leave a comment and I'll look into into it 👍

Don't forget to hit the bell icon to get notified of future versions!

Changelog:

April 26, 2024 - Initial v1.0 release

November 27, 2024 - v1.2 BETA released

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