how do I fix the quality of my sprites when they are scaled down to fit in the camera?

[Skygiant799]

I am working on a game and have drawn a character. When the character is closer to the camera, the sprite looks fine and I can see all of the black lines I drew around the sprite, but when I scale it down to fit my game’s size the black lines fade and almost disappear.

[akkmanali]

You must sclae it before import to Unity such multiples of 4