Examine source code of ParislibMap

{
  "manifest_version": 2,
  "name": "ParislibMap",
  "version": "0.9",
  "author": "Aurelien David",
  "homepage_url": "https://github.com/aureliendavid/parislib",
  "description": "Adds a map for books availability to parislibrairies.fr",
  "icons": {
    "32": "icons/bookmap-32.png",
    "64": "icons/bookmap-64.png",
    "128": "icons/bookmap-128.png",
    "256": "icons/bookmap-256.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c0d0a683-8bd1-49e4-9203-0ddc1fca93e8}"
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  },
  "web_accessible_resources": [
    "parislib.js",
    "map.html",
    "map.js",
    "static/*",
    "static/images/*",
    "icons/*"
  ],
  "permissions": [
    "<all_urls>",
    "webRequest",
    "webRequestBlocking",
    "storage",
    "tabs",
    "scripting"
  ]
}