The Differential Diffusion node is a default node in ComfyUI (if updated to most recent version). It is placed in the Model link between Loader and Sampler and it really shines with Inpainting with a (blurred) mask, it creates high quality inpainting results.
Workflows GDrive folder:
https://drive.google.com/drive/folder...
The workflow shown is called 'Inpaint.json'.
Image portfolio: https://www.deviantart.com/rudybai/ga...