Pixel sprite artifacts in Unity. How to remove?

Question

Unity

I'm not making a big game, and when I was thinking about graphics I decided to try pixel art, but I had a problem and no, it's not a blur of the sprite, for some reason the colors of the sprites are mixed,
this is how my character initially looks

And here's what happens in Unity .. .

Answer 1

Try changing the format from automatic to rgba 32
in the sprite settings

Answer 2

In the sprite settings in the filters, select Point(no filter)