Examine source code of Mister

{
  "theme": {
    "images": {
      "theme_frame": "misterbanner.jpg"
    },
    "colors": {
      "frame": "#f5eded",
      "tab_background_text": "#faeded"
    }
  },
  "version": "2.0",
  "name": "Mister",
  "manifest_version": 2,
  "description": "Mister is orange and wonderful."
}