Examine source code of Homestar_Runner

{
  "theme": {
    "images": {
      "theme_frame": "firefoxhomestar3.jpeg"
    },
    "colors": {
      "frame": "#006fff",
      "tab_background_text": "#11ff00"
    }
  },
  "version": "2.0",
  "name": "Homestar_Runner",
  "manifest_version": 2,
  "description": "Homestar Runner is supra-cool!"
}