Well, at 470x470 catalog thumbnail size there is a different problem of blurring, which I assume happens because of a mismatch between the pre-built thumbnail size and the final output thumbnail size that needs to be displayed in the end. And I'd rather take dots on two random images then blurring.
Top is catalogue size 469x469, bottom is 470x470 (the image is resized by the forum engine, so open in a separate tag to see the blurring clearly)
Also, interestingly, the dots on the folder didn't care about 470x470 size change, just got blurry (I've even resized the image inside the folder as well). Although the dots on the other image did disappear at 470x470
And also, interestingly, the dots don't reappear on the images that they used to be on at 470x470 size (because I did had both view thumbnails size and catalogue thumbnail size set to 470x470 at the beginning). I didn't do extensive testing with my entire collection, because right now I don't feel like spending a couple of hours resizing all my thumbnails and then staring at them for hours looking for dots. Maybe later. But I have a sneaking suspicion that the dots have simply moved to different images again. They seem to work in mysterious ways. But I might be wrong.
Anyway. If that's the best solution you got, then I'll stick with 469x469 and the two dotted images. But thanks for your time.
I will write if I do try to resize all my thumbnails and do spend hours looking for dots. If I'll find them or not, I'll report my findings (if I'll attempt this).
