[HELP] Very thin outline around in-game head sprite

[zachariesnackarie]

Hello! I'm currently drawing the sprite for a mod I'm making, and every time I check the in-game sprite, it looks like there's a very thin line surrounding the head. It looks like I colored outside the lines of his head

When I check the sprite outside the game (ie. spriter), there is no outline around the head. Nor is there any outline around the head in the headbase (and heabase_hat).png files.

I'm using the Extended Sample Character from Dragon Wolf Leo, (and even then, I wouldn't say that's the source of the problem). but I've never encountered any issues spriting before. Any solutions? (maybe i'll just have to switch art programs )

[RedHairedHero]

There's 2 heads that will be stacked on top of each other. Headbase and Headbase_Hat. Normally Headbase_Hat is the one underneath so that may be where it's coming from.