PanelPainter-Project is an open-source initiative to automate black-and-white manga coloring using fine-tuned LoRAs. This project is dedicated to training models that maintain clean line art while achieving smooth, anime-style color fills.<h2 id="update-v3.0-major-release">Update – V3.0 Major Release</h2>PanelPainter V3 is a major milestone. Unlike previous "helper" versions, V3 is a standalone coloring lora trained on Qwen Image Edit 2511.<ul><li>Training Data: Trained on 903 hand-picked panels using Natural Language Captions.</li><li>Methodology: Combines the "real line art" training method discovered in V2 with a significantly larger dataset to generalize across different manga styles.</li><li>Trigger Word: <code>Color this panelpainter</code></li></ul><hr /><h2 id="workflows-and-resources">Workflows &amp; Resources</h2>For the best results, use the dedicated workflows on RunningHub.PanelPainter V3 (Qwen 2511)<ul><li><a target="_blank" rel="ugc" href="https://www.runninghub.ai/post/2006342676790124546">RunningHub: V3 BF16 Workflow</a> (Fast, Balanced)</li><li><a target="_blank" rel="ugc" href="https://www.runninghub.ai/post/2006342711082749954">RunningHub: V3 AIO Workflow</a> (All-In-One)</li></ul>PanelPainter V2.5 (Qwen 2511)<ul><li><a target="_blank" rel="ugc" href="https://www.runninghub.ai/post/2004478911037796354">RunningHub: V2.5 AIO Workflow</a></li><li><a target="_blank" rel="ugc" href="https://www.runninghub.ai/ai-detail/2004407510889099265">RunningHub: V2.5 AIO App (With VL Prompting)</a> – Includes Vision Language prompting for better adherence.</li></ul><hr /><h2 id="usage-guide">Usage Guide</h2>V3 has been tested on various styles including Chainsaw Man, Frieren, Komi Can't Communicate, and Oshi no Ko.Recommended Generation Settings<ul><li>LoRA: PanelPainter V3 (Weight: 1.0)</li><li>Helper LoRA: 4-Step Lighting (Weight: 1.0)</li><li>Steps: 4</li><li>Sampler: Euler</li><li>Scheduler: Simple</li><li>CFG: 1.0</li></ul>Prompting Use the trigger word in your prompt:Color this panelpainterYou can also add specific lighting or atmospheric tags:Color this panelpainter, sunset lighting, warm tones<hr /><h2 id="project-history-and-development">Project History &amp; Development</h2>Version 3.0 (Current)<ul><li>Base: Qwen 2511</li><li>Summary: Scaled up to 903 images using the "real line art" training method. Solves the generalization issues of V2 while maintaining color quality.</li></ul>Version 2.0 (Stable)<ul><li>Base: Qwen 2509 (Compatible with 2511)</li><li>Summary: The breakthrough version. Switched from synthetic data to real line art (150 images). Proved that small, high-quality datasets outperform massive synthetic ones.</li></ul>Version 1.0 (Legacy)<ul><li>Summary: Trained on 7,000 synthetic grayscale images. Failed to handle real ink imperfections. Kept for archival purposes.</li></ul><hr /><h2 id="credits-and-acknowledgements">Credits &amp; Acknowledgements</h2><ul><li>Training: Trained on Musubi Tuner (Thanks to kohya-ss).</li><li>Dataset Contributors: Special thanks to @Rox_Jr &amp; @lucifer_brine04 for their help with dataset curation.</li></ul>

PanelPainter - Manga Coloring

<ul><li>Initial experimental release of PanelPainter.</li><li>Trained for 7,000 steps on 7,500 NSFW doujin panels (nhentai).</li><li>Optimized for use with Qwen Image Edit Plus / 2509 models.</li><li>Focused on preserving clean line art and achieving flat anime-style colors.</li><li>Works best when paired with Qwen-Rapid-AIO-NSFW-v8.safetensors.</li><li>May produce inconsistent results on SFW or action manga panels due to NSFW-based training data.</li><li>Ideal LoRA weight range: 0.45–0.6.</li></ul>

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