[LibGDX] [SOLVED] JSON, What does it know how to use?

Newbie & Debugging Questions
#1

Ok here it goes

*Skins can use JSON files
*You can define JSON files to stylize the skins

ie.

{
    com.badlogic.gdx.graphics.Color: {
        green: { r: 0, g: 1, b: 0, a: 1 }
    },
    com.badlogic.gdx.scenes.scene2d.ui.Skin$TintedDrawable: {
        round-green: { name: round, color: green }
    }
}

*How does the JSON file know what image to use?
*Do I name an atlas file the same as the JSON file?