Examine source code of Ghetto Batman

{
  "theme": {
    "images": {
      "theme_frame": "NOM.jpg"
    },
    "colors": {
      "frame": "#ffea00",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Ghetto Batman",
  "manifest_version": 2,
  "description": "Just a funny image I found on the internet and edited. Use a toolbar or 2 to show the full image on the top."
}