Examine source code of PS Store Helper

{
  "name": "PS Store Helper",
  "version": "2.0.5",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "https://store.playstation.com/*",
    "https://www.metacritic.com/*",
    "https://psdeals.net/*",
    "tabs",
    "storage"
  ],
  "browser_action": {
    "default_title": "PS Store Helper",
    "default_icon": "icon/green128.png"
  },
  "icons": {
    "16": "icon/green16.png",
    "48": "icon/green48.png",
    "128": "icon/green128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://store.playstation.com/*"
      ],
      "js": [
        "get_metacritic.js",
        "content.js",
        "psn_info.js",
        "get_discount.js",
        "util.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "manifest_version": 2
}