Examine source code of Quiet Weather

{
  "manifest_version": 2,
  "name": "Quiet Weather",
  "short_name": "Weather",
  "description": "A minimalist extension for seeing the current weather based on your location.",
  "version": "0.0.3",
  "icons": {
    "32": "icons/icon_32.png",
    "64": "icons/icon_64.png",
    "128": "icons/icon_128.png",
    "256": "icons/icon_256.png",
    "512": "icons/icon_512.png"
  },
  "background": {
    "scripts": [
      "background_script.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "32": "icons/icon_32.png",
      "64": "icons/icon_64.png",
      "128": "icons/icon_128.png",
      "256": "icons/icon_256.png",
      "512": "icons/icon_512.png"
    },
    "default_popup": "browserAction/index.html",
    "default_title": "Weather"
  },
  "permissions": [
    "storage",
    "geolocation",
    "webRequest"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{9a3f1e44-73c9-44ba-980e-9636edadf2f0}"
    }
  }
}