Could you tell me the correct way to import sprites? What dimensions should be used? Is the quality in the editor downscaled from the quality of the final .exe-file?
I could give you a file but I just use an rigidbody2d to move in a not straight way. As sprite I am using the default image and you will see the edges being pixelated.
Edit: after a lot of searching online, the problem I have is that my lines are aliased so I need to apply anti-aliasing. What helped for me is leaving 2 transparent pixels around my tiles so 32x32 has a border of 2px transparent and then my sprite starts.