Examine source code of Wombat Power

{
  "theme": {
    "images": {
      "theme_frame": "try3copy.jpg"
    },
    "colors": {
      "frame": "#5715e6",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Wombat Power",
  "manifest_version": 2,
  "description": "A wombat cartoon."
}