I am wanting to use custom images for an expansion team but I'm not sure how I would add in the jersey with the custom logo. I know for team logo I can just add a PNG to the logos folder, but the jerseys are a weird format that I'm not familiar with editing.

Can anyone point me in the right direction to either a template to use for logo/jersey modification, or just directions on how I could accomplish that? Just for clarity I am trying to create a St Louis Spirits expansion team, and then not sure about the second team that is required for expansion as well. May do Las Vegas for that.

Any help is appreciated!