MacOS: Black isn't rendered as fully transparent with additive blendmode

[Golden Shine]

Making the black a transparent background seems like a good fix to make the sprites fine, but it's just a minor discrepency with the Windows version.

Before making the black color a transparent background. (This only happens on MacOS)

After making black fully transparent. (How it looks on Windows normally)

 

[Rookie Player 392]

Looks pretty.