Examine source code of Wage Gap Button

{
  "manifest_version": 2,
  "name": "Wage Gap Button",
  "description": "Click me for good info",
  "version": "0.0.2resigned1",
  "icons": {
    "128": "icon_128.png"
  },
  "browser_action": {
    "default_icon": "icon.png"
  },
  "permissions": [
    "storage"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "background": {
    "scripts": [
      "scripts/audioSprites.js",
      "scripts/main.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "wagegapbutton@example.com"
    }
  }
}