Examine source code of Nyaa Utility

{
  "manifest_version": 2,
  "name": "Nyaa Utility",
  "permissions": [
    "https://nyaa.si/*",
    "https://sukebei.nyaa.si/*",
    "https://meowinjapanese.cf/*",
    "https://sukebei.meowinjapanese.cf/*",
    "background",
    "unlimitedStorage",
    "storage",
    "notifications"
  ],
  "version": "1.8",
  "author": "Arjix",
  "description": "An extension that customizes nyaa.",
  "icons": {
    "16": "./assets/16.png",
    "48": "./assets/48.png",
    "128": "./assets/128.png"
  },
  "web_accessible_resources": [
    "assets/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://nyaa.si/*",
        "https://sukebei.nyaa.si/*",
        "https://meowinjapanese.cf/*",
        "https://sukebei.meowinjapanese.cf/*"
      ],
      "js": [
        "./jquery-3.5.1.min.js",
        "./themeLoader.js",
        "./foreground/init.js",
        "./loader.js"
      ],
      "css": [
        "./style.css"
      ]
    }
  ],
  "background": {
    "scripts": [
      "jquery-3.5.1.min.js",
      "./background/utils.js",
      "./background/eventListeners.js",
      "./background/commentsNotifier.js",
      "./background/torrentsNotifier.js"
    ]
  }
}