I have this odd problem when using the blur tool or the spray brush: some strange lines appear in places that should look like a smooth gradient and my drawing looks like someone spilled oil on it. Here's a normal yellow gradient and the same thing with these absurd lines. I noticed that it gets worse for darker colors (black and purple here) than for lighter colors (yellow and black here). Do you know how to fix this? I tried a ton of different blend modes and nothing worked... And the exact same thing happens in several different applications (Krita, Adobe Fresco) Edit: it is probably my display. Does anyone know what to do?