Examine source code of Custom Pokemon Sprites

{
  "theme": {
    "images": {
      "theme_frame": "CustomPersona1.JPG"
    },
    "colors": {
      "frame": "#7d6d02",
      "tab_background_text": "#7d6d02"
    }
  },
  "version": "2.0",
  "name": "Custom Pokemon Sprites",
  "manifest_version": 2,
  "description": "This is my improved attempt at making a persona. And yes, the sprites are made by me"
}