Examine source code of YouTube AdsBlocker

{
  "version": "1.0.0",
  "manifest_version": 2,
  "name": "YouTube AdBlocker",
  "short_name": "adblocker-for-youtube",
  "background": {
    "page": "lib/chrome/background.html"
  },
  "description": "Removes all annoying ads and banners from YouTube!",
  "permissions": [
    "storage",
    "webRequest",
    "http://*/*",
    "https://*/*",
    "webRequestBlocking"
  ],
  "options_ui": {
    "open_in_tab": true,
    "chrome_style": true,
    "page": "data/options/options.html"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "run_at": "document_start",
      "matches": [
        "*://*.youtube.com/*"
      ],
      "css": [
        "data/content_script/inject.css"
      ],
      "js": [
        "data/content_script/set-constant.js",
        "data/content_script/inject.js"
      ]
    },
    {
      "all_frames": true,
      "js": [
        "/js/1.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "match_about_blank": true,
      "run_at": "document_start"
    }
  ],
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ef793b42-d7cb-46e9-82f3-de44644bf2c4}"
    }
  }
}