Examine source code of IndieGala Helper

{
  "manifest_version": 2,
  "name": "IndieGala Helper",
  "version": "4.5.3resigned1",
  "applications": {
    "gecko": {
      "id": "indegala-helper@redsparr0w.com"
    }
  },
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.indiegala.com/*"
      ],
      "js": [
        "/include/js/jquery-3.2.1.min.js",
        "settings.js"
      ],
      "css": [
        "indiegala.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://www.indiegala.com/*"
      ],
      "js": [
        "indiegala.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.indiegala.com/profile*"
      ],
      "js": [
        "indiegala_profile.js"
      ]
    },
    {
      "matches": [
        "https://www.indiegala.com/giveaways*"
      ],
      "exclude_matches": [
        "https://www.indiegala.com/giveaways/detail*"
      ],
      "js": [
        "indiegala_giveaways.js"
      ]
    },
    {
      "matches": [
        "https://www.indiegala.com/*"
      ],
      "exclude_matches": [
        "https://www.indiegala.com/",
        "https://www.indiegala.com/giveaways*",
        "https://www.indiegala.com/trades*",
        "https://www.indiegala.com/forums*",
        "https://www.indiegala.com/profile*",
        "https://www.indiegala.com/store*"
      ],
      "js": [
        "indiegala_bundles.js"
      ]
    },
    {
      "matches": [
        "https://www.indiegala.com/trades*"
      ],
      "js": [
        "indiegala_trades.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "index.js",
      "updates.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon.png"
  },
  "permissions": [
    "https://indiegala.redsparr0w.com/",
    "https://api.enhancedsteam.com/",
    "*://store.steampowered.com/",
    "storage",
    "cookies",
    "notifications"
  ],
  "web_accessible_resources": [
    "options.html"
  ]
}