Examine source code of Boplats Improvements

{
  "manifest_version": 2,
  "name": "Boplats Improvements",
  "version": "1.0",
  "description": "Adds a visual filter to the search results on boplats.se. Resizes the map (if there is a map, which there almost never is) and maybe some other improvements in the future.",
  "icons": {
    "48": "boplats-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.boplats.se/*"
      ],
      "js": [
        "storage.js",
        "main.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_action": {
    "default_icon": "boplats-48.png",
    "default_title": "Boplats Improvements",
    "default_popup": "popup/popup.html"
  },
  "web_accessible_resources": [
    "popup/popup.css"
  ]
}