Artifacts at the Edge of a Sprite

I noticed these artifacts in several C3 games, and they sometimes appear in my game as well. Does anyone know how to fix this?

That's called "color bleeding". Ashley made a good post about it, check it out :)

Thanks! I'll check it out.

One of the quickest methods to try is set "Downscaling quality" to "High quality".

"Project Properties - Advanced"