Examine source code of Fallbird

{
  "theme": {
    "images": {
      "theme_frame": "Fallbird_Header1.jpg"
    },
    "colors": {
      "frame": "#a5d5de",
      "tab_background_text": "#080000"
    }
  },
  "version": "2.0",
  "name": "Fallbird",
  "manifest_version": 2,
  "description": "Cardinals eating"
}