Examine source code of Pink Google

{
  "default_locale": "en",
  "manifest_version": 2,
  "version": "0.2",
  "description": "This is a Beta Version. It makes your Google Search Engine really cute with this color pink.",
  "name": "Pink Google",
  "developer": {
    "name": "itsHally"
  },
  "content_scripts": [
    {
      "run_at": "document_start",
      "matches": [
        "*://*.google.com/*",
        "*://*.google.ad/*",
        "*://*.google.ae/*",
        "*://*.google.com.af/*",
        "*://*.google.com.ag/*",
        "*://*.google.com.ai/*",
        "*://*.google.am/*",
        "*://*.google.co.ao/*",
        "*://*.google.com.ar/*",
        "*://*.google.as/*",
        "*://*.google.at/*",
        "*://*.google.com.au/*",
        "*://*.google.az/*",
        "*://*.google.ba/*",
        "*://*.google.com.bd/*",
        "*://*.google.be/*",
        "*://*.google.bf/*",
        "*://*.google.bg/*",
        "*://*.google.com.bh/*",
        "*://*.google.bi/*",
        "*://*.google.bj/*",
        "*://*.google.com.bn/*",
        "*://*.google.com.bo/*",
        "*://*.google.com.br/*",
        "*://*.google.bs/*",
        "*://*.google.co.bw/*",
        "*://*.google.by/*",
        "*://*.google.com.bz/*",
        "*://*.google.ca/*",
        "*://*.google.cd/*",
        "*://*.google.cf/*",
        "*://*.google.cg/*",
        "*://*.google.ch/*",
        "*://*.google.ci/*",
        "*://*.google.co.ck/*",
        "*://*.google.cl/*",
        "*://*.google.cm/*",
        "*://*.google.cn/*",
        "*://*.google.com.co/*",
        "*://*.google.co.cr/*",
        "*://*.google.com.cu/*",
        "*://*.google.cv/*",
        "*://*.google.com.cy/*",
        "*://*.google.cz/*",
        "*://*.google.de/*",
        "*://*.google.dj/*",
        "*://*.google.dk/*",
        "*://*.google.dm/*",
        "*://*.google.com.do/*",
        "*://*.google.dz/*",
        "*://*.google.com.ec/*",
        "*://*.google.ee/*",
        "*://*.google.com.eg/*",
        "*://*.google.es/*",
        "*://*.google.com.et/*",
        "*://*.google.fi/*",
        "*://*.google.com.fj/*",
        "*://*.google.fm/*",
        "*://*.google.fr/*",
        "*://*.google.ga/*",
        "*://*.google.ge/*",
        "*://*.google.gg/*",
        "*://*.google.com.gh/*",
        "*://*.google.com.gi/*",
        "*://*.google.gl/*",
        "*://*.google.gm/*",
        "*://*.google.gp/*",
        "*://*.google.gr/*",
        "*://*.google.com.gt/*",
        "*://*.google.gy/*",
        "*://*.google.com.hk/*",
        "*://*.google.hn/*",
        "*://*.google.hr/*",
        "*://*.google.ht/*",
        "*://*.google.hu/*",
        "*://*.google.co.id/*",
        "*://*.google.ie/*",
        "*://*.google.co.il/*",
        "*://*.google.im/*",
        "*://*.google.co.in/*",
        "*://*.google.iq/*",
        "*://*.google.is/*",
        "*://*.google.it/*",
        "*://*.google.je/*",
        "*://*.google.com.jm/*",
        "*://*.google.jo/*",
        "*://*.google.co.jp/*",
        "*://*.google.co.ke/*",
        "*://*.google.com.kh/*",
        "*://*.google.ki/*",
        "*://*.google.kg/*",
        "*://*.google.co.kr/*",
        "*://*.google.com.kw/*",
        "*://*.google.kz/*",
        "*://*.google.la/*",
        "*://*.google.com.lb/*",
        "*://*.google.li/*",
        "*://*.google.lk/*",
        "*://*.google.co.ls/*",
        "*://*.google.lt/*",
        "*://*.google.lu/*",
        "*://*.google.lv/*",
        "*://*.google.com.ly/*",
        "*://*.google.co.ma/*",
        "*://*.google.md/*",
        "*://*.google.me/*",
        "*://*.google.mg/*",
        "*://*.google.mk/*",
        "*://*.google.ml/*",
        "*://*.google.mn/*",
        "*://*.google.ms/*",
        "*://*.google.com.mt/*",
        "*://*.google.mu/*",
        "*://*.google.mv/*",
        "*://*.google.mw/*",
        "*://*.google.com.mx/*",
        "*://*.google.com.my/*",
        "*://*.google.co.mz/*",
        "*://*.google.com.na/*",
        "*://*.google.com.nf/*",
        "*://*.google.com.ng/*",
        "*://*.google.com.ni/*",
        "*://*.google.ne/*",
        "*://*.google.nl/*",
        "*://*.google.no/*",
        "*://*.google.com.np/*",
        "*://*.google.nr/*",
        "*://*.google.nu/*",
        "*://*.google.co.nz/*",
        "*://*.google.com.om/*",
        "*://*.google.com.pa/*",
        "*://*.google.com.pe/*",
        "*://*.google.com.ph/*",
        "*://*.google.com.pk/*",
        "*://*.google.pl/*",
        "*://*.google.pn/*",
        "*://*.google.com.pr/*",
        "*://*.google.ps/*",
        "*://*.google.pt/*",
        "*://*.google.com.py/*",
        "*://*.google.com.qa/*",
        "*://*.google.ro/*",
        "*://*.google.ru/*",
        "*://*.google.rw/*",
        "*://*.google.com.sa/*",
        "*://*.google.com.sb/*",
        "*://*.google.sc/*",
        "*://*.google.se/*",
        "*://*.google.com.sg/*",
        "*://*.google.sh/*",
        "*://*.google.si/*",
        "*://*.google.sk/*",
        "*://*.google.com.sl/*",
        "*://*.google.sn/*",
        "*://*.google.so/*",
        "*://*.google.sm/*",
        "*://*.google.st/*",
        "*://*.google.com.sv/*",
        "*://*.google.td/*",
        "*://*.google.tg/*",
        "*://*.google.co.th/*",
        "*://*.google.com.tj/*",
        "*://*.google.tk/*",
        "*://*.google.tl/*",
        "*://*.google.tm/*",
        "*://*.google.tn/*",
        "*://*.google.to/*",
        "*://*.google.com.tr/*",
        "*://*.google.tt/*",
        "*://*.google.com.tw/*",
        "*://*.google.co.tz/*",
        "*://*.google.com.ua/*",
        "*://*.google.co.ug/*",
        "*://*.google.co.uk/*",
        "*://*.google.com.uy/*",
        "*://*.google.co.uz/*",
        "*://*.google.com.vc/*",
        "*://*.google.co.ve/*",
        "*://*.google.vg/*",
        "*://*.google.co.vi/*",
        "*://*.google.com.vn/*",
        "*://*.google.vu/*",
        "*://*.google.ws/*",
        "*://*.google.rs/*",
        "*://*.google.co.za/*",
        "*://*.google.co.zm/*",
        "*://*.google.co.zw/*",
        "*://*.google.cat/*",
        "*://*.google.com/search?*",
        "*://*.google.ad/search?*",
        "*://*.google.ae/search?*",
        "*://*.google.com.af/search?*",
        "*://*.google.com.ag/search?*",
        "*://*.google.com.ai/search?*",
        "*://*.google.am/search?*",
        "*://*.google.co.ao/search?*",
        "*://*.google.com.ar/search?*",
        "*://*.google.as/search?*",
        "*://*.google.at/search?*",
        "*://*.google.com.au/search?*",
        "*://*.google.az/search?*",
        "*://*.google.ba/search?*",
        "*://*.google.com.bd/search?*",
        "*://*.google.be/search?*",
        "*://*.google.bf/search?*",
        "*://*.google.bg/search?*",
        "*://*.google.com.bh/search?*",
        "*://*.google.bi/search?*",
        "*://*.google.bj/search?*",
        "*://*.google.com.bn/search?*",
        "*://*.google.com.bo/search?*",
        "*://*.google.com.br/search?*",
        "*://*.google.bs/search?*",
        "*://*.google.co.bw/search?*",
        "*://*.google.by/search?*",
        "*://*.google.com.bz/search?*",
        "*://*.google.ca/search?*",
        "*://*.google.cd/search?*",
        "*://*.google.cf/search?*",
        "*://*.google.cg/search?*",
        "*://*.google.ch/search?*",
        "*://*.google.ci/search?*",
        "*://*.google.co.ck/search?*",
        "*://*.google.cl/search?*",
        "*://*.google.cm/search?*",
        "*://*.google.cn/search?*",
        "*://*.google.com.co/search?*",
        "*://*.google.co.cr/search?*",
        "*://*.google.com.cu/search?*",
        "*://*.google.cv/search?*",
        "*://*.google.com.cy/search?*",
        "*://*.google.cz/search?*",
        "*://*.google.de/search?*",
        "*://*.google.dj/search?*",
        "*://*.google.dk/search?*",
        "*://*.google.dm/search?*",
        "*://*.google.com.do/search?*",
        "*://*.google.dz/search?*",
        "*://*.google.com.ec/search?*",
        "*://*.google.ee/search?*",
        "*://*.google.com.eg/search?*",
        "*://*.google.es/search?*",
        "*://*.google.com.et/search?*",
        "*://*.google.fi/search?*",
        "*://*.google.com.fj/search?*",
        "*://*.google.fm/search?*",
        "*://*.google.fr/search?*",
        "*://*.google.ga/search?*",
        "*://*.google.ge/search?*",
        "*://*.google.gg/search?*",
        "*://*.google.com.gh/search?*",
        "*://*.google.com.gi/search?*",
        "*://*.google.gl/search?*",
        "*://*.google.gm/search?*",
        "*://*.google.gp/search?*",
        "*://*.google.gr/search?*",
        "*://*.google.com.gt/search?*",
        "*://*.google.gy/search?*",
        "*://*.google.com.hk/search?*",
        "*://*.google.hn/search?*",
        "*://*.google.hr/search?*",
        "*://*.google.ht/search?*",
        "*://*.google.hu/search?*",
        "*://*.google.co.id/search?*",
        "*://*.google.ie/search?*",
        "*://*.google.co.il/search?*",
        "*://*.google.im/search?*",
        "*://*.google.co.in/search?*",
        "*://*.google.iq/search?*",
        "*://*.google.is/search?*",
        "*://*.google.it/search?*",
        "*://*.google.je/search?*",
        "*://*.google.com.jm/search?*",
        "*://*.google.jo/search?*",
        "*://*.google.co.jp/search?*",
        "*://*.google.co.ke/search?*",
        "*://*.google.com.kh/search?*",
        "*://*.google.ki/search?*",
        "*://*.google.kg/search?*",
        "*://*.google.co.kr/search?*",
        "*://*.google.com.kw/search?*",
        "*://*.google.kz/search?*",
        "*://*.google.la/search?*",
        "*://*.google.com.lb/search?*",
        "*://*.google.li/search?*",
        "*://*.google.lk/search?*",
        "*://*.google.co.ls/search?*",
        "*://*.google.lt/search?*",
        "*://*.google.lu/search?*",
        "*://*.google.lv/search?*",
        "*://*.google.com.ly/search?*",
        "*://*.google.co.ma/search?*",
        "*://*.google.md/search?*",
        "*://*.google.me/search?*",
        "*://*.google.mg/search?*",
        "*://*.google.mk/search?*",
        "*://*.google.ml/search?*",
        "*://*.google.mn/search?*",
        "*://*.google.ms/search?*",
        "*://*.google.com.mt/search?*",
        "*://*.google.mu/search?*",
        "*://*.google.mv/search?*",
        "*://*.google.mw/search?*",
        "*://*.google.com.mx/search?*",
        "*://*.google.com.my/search?*",
        "*://*.google.co.mz/search?*",
        "*://*.google.com.na/search?*",
        "*://*.google.com.nf/search?*",
        "*://*.google.com.ng/search?*",
        "*://*.google.com.ni/search?*",
        "*://*.google.ne/search?*",
        "*://*.google.nl/search?*",
        "*://*.google.no/search?*",
        "*://*.google.com.np/search?*",
        "*://*.google.nr/search?*",
        "*://*.google.nu/search?*",
        "*://*.google.co.nz/search?*",
        "*://*.google.com.om/search?*",
        "*://*.google.com.pa/search?*",
        "*://*.google.com.pe/search?*",
        "*://*.google.com.ph/search?*",
        "*://*.google.com.pk/search?*",
        "*://*.google.pl/search?*",
        "*://*.google.pn/search?*",
        "*://*.google.com.pr/search?*",
        "*://*.google.ps/search?*",
        "*://*.google.pt/search?*",
        "*://*.google.com.py/search?*",
        "*://*.google.com.qa/search?*",
        "*://*.google.ro/search?*",
        "*://*.google.ru/search?*",
        "*://*.google.rw/search?*",
        "*://*.google.com.sa/search?*",
        "*://*.google.com.sb/search?*",
        "*://*.google.sc/search?*",
        "*://*.google.se/search?*",
        "*://*.google.com.sg/search?*",
        "*://*.google.sh/search?*",
        "*://*.google.si/search?*",
        "*://*.google.sk/search?*",
        "*://*.google.com.sl/search?*",
        "*://*.google.sn/search?*",
        "*://*.google.so/search?*",
        "*://*.google.sm/search?*",
        "*://*.google.st/search?*",
        "*://*.google.com.sv/search?*",
        "*://*.google.td/search?*",
        "*://*.google.tg/search?*",
        "*://*.google.co.th/search?*",
        "*://*.google.com.tj/search?*",
        "*://*.google.tk/search?*",
        "*://*.google.tl/search?*",
        "*://*.google.tm/search?*",
        "*://*.google.tn/search?*",
        "*://*.google.to/search?*",
        "*://*.google.com.tr/search?*",
        "*://*.google.tt/search?*",
        "*://*.google.com.tw/search?*",
        "*://*.google.co.tz/search?*",
        "*://*.google.com.ua/search?*",
        "*://*.google.co.ug/search?*",
        "*://*.google.co.uk/search?*",
        "*://*.google.com.uy/search?*",
        "*://*.google.co.uz/search?*",
        "*://*.google.com.vc/search?*",
        "*://*.google.co.ve/search?*",
        "*://*.google.vg/search?*",
        "*://*.google.co.vi/search?*",
        "*://*.google.com.vn/search?*",
        "*://*.google.vu/search?*",
        "*://*.google.ws/search?*",
        "*://*.google.rs/search?*",
        "*://*.google.co.za/search?*",
        "*://*.google.co.zm/search?*",
        "*://*.google.co.zw/search?*",
        "*://*.google.cat/search?*"
      ],
      "css": [
        "styles/main.css"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "tabs",
    "contextMenus",
    "sessions"
  ],
  "browser_action": {
    "default_icon": {
      "16": "assets/icons/favicon-16x16.png",
      "32": "assets/icons/favicon-32x32.png",
      "150": "assets/icons/mstile-150x150.png",
      "152": "assets/icons/apple-touch-icon.png",
      "192": "assets/icons/android-chrome-192x192.png",
      "384": "assets/icons/android-chrome-384x384.png"
    }
  },
  "icons": {
    "384": "assets/icons/android-chrome-384x384.png"
  }
}