omg the black outline... in asprite there was no default black color on the palette. only 3 days ago I noticed that, during the gem I wasnt aware.
The blue and red should have been gray and black (red and blue shouldn't have been in the game anyway)... that was a detail I wanted to change but missed.
Im so impressed you found out about that line because I knew *something* was bothering me about sprites I were making and couldnt understand what.