Examine source code of Buff Utility

{
  "name": "Buff Utility",
  "author": "MePenguini",
  "version": "2.2.3",
  "description": "Adds cosmetic functionality to buff.163.com",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background/merge_background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "sources/config.js",
        "sources/InjectionService.js",
        "sources/BrowserInterface.js",
        "sources/ISchemaHelper.js",
        "sources/Cookie.js",
        "sources/Util.js",
        "sources/ExtensionSettings.js",
        "sources/CurrencyHelper.js",
        "sources/PopupHelper.js",
        "sources/preload.js"
      ],
      "css": [
        "resources/css/Theme.css"
      ],
      "matches": [
        "https://buff.163.com/*"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "js": [
        "sources/Start.js"
      ],
      "matches": [
        "https://buff.163.com/*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/adjustments/Adjust_Settings.js"
      ],
      "css": [
        "resources/css/Adjust_Settings.css"
      ],
      "matches": [
        "https://buff.163.com/user-center/profile"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/adjustments/Adjust_Listings.js"
      ],
      "css": [
        "resources/css/Adjust_Listings.css"
      ],
      "matches": [
        "https://buff.163.com/goods/*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/adjustments/Adjust_Market.js"
      ],
      "css": [
        "resources/css/Adjust_Market.css"
      ],
      "matches": [
        "https://buff.163.com/market/*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/adjustments/Adjust_Sales.js"
      ],
      "css": [
        "resources/css/Adjust_Sales.css"
      ],
      "matches": [
        "https://buff.163.com/market/sell_order/on_sale*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/adjustments/Adjust_Favourites.js"
      ],
      "matches": [
        "https://buff.163.com/user-center/bookmark/sell_order*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/adjustments/Adjust_Shop.js"
      ],
      "matches": [
        "https://buff.163.com/shop*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/adjustments/Adjust_Share.js"
      ],
      "matches": [
        "https://buff.163.com/market/m/item_detail?*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/config.js",
        "sources/BrowserInterface.js",
        "sources/Util.js",
        "sources/csgostash/Add_Links_Skin.js"
      ],
      "matches": [
        "https://csgostash.com/skin/*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "sources/config.js",
        "sources/InjectionService.js",
        "sources/BrowserInterface.js",
        "sources/ISchemaHelper.js",
        "sources/Cookie.js",
        "sources/Util.js",
        "sources/ExtensionSettings.js",
        "sources/CurrencyHelper.js",
        "sources/preload.js",
        "steam/PSE_Start.js",
        "steam/PSE_Util.js",
        "steam/PSE_Currencies.js"
      ],
      "matches": [
        "https://steamcommunity.com/market*"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "js": [
        "steam/PSE_Market.js"
      ],
      "css": [
        "resources/css/PSE_Market.css"
      ],
      "matches": [
        "https://steamcommunity.com/market",
        "https://steamcommunity.com/market/",
        "https://steamcommunity.com/market?*"
      ],
      "all_frames": true
    },
    {
      "js": [
        "steam/PSE_TransformGraph.js"
      ],
      "matches": [
        "https://steamcommunity.com/market/listings/*"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "js": [
        "steam/PSE_Listings.js"
      ],
      "css": [
        "resources/css/PSE_Listings.css"
      ],
      "matches": [
        "https://steamcommunity.com/market/listings/*"
      ],
      "all_frames": true
    }
  ],
  "permissions": [
    "storage",
    "*://penguinivogel.github.io/currency-repository/rates.json",
    "*://buff.163.com/*",
    "*://https://steamcommunity.com/market*",
    "*://csgostash.com/*"
  ],
  "icons": {
    "16": "resources/icon/icon16.png",
    "48": "resources/icon/icon48.png",
    "128": "resources/icon/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "buff.utility@penguinivogel.github.io",
      "strict_min_version": "48.0"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  }
}