Hi Daniel,
First of all many thanks for the shaders you provided. Even though it's not quite working for me right now, I'm sure we'll manage to fix it.
I'm working on Unity 2019.3.13f1 with the latest URP. First, I followed the steps in the PDF but can't see any difference on the camera render. Moreover I'm getting an infinite loop on "Save Assets" that started to pop when I changed Painting, I think to Dither. I now have to kill the project directly in the task manager.
In the scene, I have a Global Volume with Post Processing effect, but that game object is deactivated. As for the graphics settings, I changed them as you instructed in the pdf.
Could you guide me in using your asset? Many thanks!