Use this style to turn everything into neon outlines, or simply to add colorful lighting to your images. Activate with "neon_outlines".
Weight, CFG, etc. heavily depend on the subject, prompt, negative embeddings, model, and so on.
Start at a weight of about 0.8 to find out how your it affects your prompts.
If your image is made of ugly squiggly neon outlines and added blur, you probably need to lower the lora weight by quite a lot and/or add some realism/quality negative embeddings. If your image looks totally normal, you need to raise the weight.

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Recommendations for starting and/or generating images online:
Example images can be seen in this post:

https://civitai.com/images/4013328
Dreamshaper, Realcartoon3D and CyberSushi models seemed to produce good results consistently.
Under additional resources, I choose lora weight of 1 to 1.2, and add the negative_hand and fast_negative negative embeddings

Add "in a dark room" etc. in the prompt.
Add a color theme to the prompt (like "pink and teal color theme").
Add "close up" and/or "portrait" to the prompt, especially if the subject is a human or human-like character.
Prompt Example:
Positive:
neon_outlines, award winning photograph of a woman standing in a dark room, close up, blonde, long wavy hair, cute dress, relaxed atmosphere, pink and teal color theme, 8k resolution
Negative:
negative_hand FastNegativeV2
Under "Advanced" settings, CFG scale "Precise" (10), Sampler "Popular" (DPM++ 2M Karras) and steps "High" (46) seem to improve the results
Any VAE is better than none, choose one that fits your model. I chose VAE-FT-MSE-840000-EMA