After analyzing the hints I came to conclusion that the login/password for this level should be bicolor/cat. I mean a cat is an attention seeker and he does ruin the third dimension in the video.

Alas, the game disagrees with me.

Guess I have to try that cross/parallel view thing as the game recommends.

did you, like me, create an animated gif of a cat at some point?

This one is so full of misdirection that it's almost trolling.
I've checked the cat, watched the video dozen of times, tried the names of the dragon and the guy who invented it.
Finally I learned to do THE THING, but I don't know, it doesn't break the third dimension for me. Maybe, slightly.
I don't have the best eyesight, so maybe it's a me problem.

The cross/parallel view thing didn't work for me. One reason for this might be that the picture is too small.

What worked is making a .gif of the picture. This helped to notice that a certain object in the picture bends at the wrong angle.

And yes, I was minutes away from making a .gif of the cat, so I think BobVP should post his version as a tribute to the suffering of all those trying to solve this puzzle.