Tino could you add Paint Shading and PX border Cel Shading to DolphinFX/IshiirukaFX? I noticed these shaders are present in GSDXFX 2.30 however Asmodean never updated DolphinFX 2.20 any further therefore Paint Shading and PX Cel Shading are missing from it. I will send you a link.
https://github.com/PCSX2/pcsx2/pull/739
https://github.com/PCSX2/pcsx2/pull/739