Examine source code of BetterWRD

{
  "name": "BetterWRD",
  "short_name": "BWRD",
  "description": "Adds tons of new features to WRD.",
  "author": "david77 (davidTube)",
  "version": "5.3",
  "manifest_version": 2,
  "web_accessible_resources": [
    "*"
  ],
  "content_scripts": [
    {
      "js": [
        "etc/events.js",
        "etc/libs/purify.min.js",
        "etc/utils.js",
        "etc/etc.js",
        "features/loaders/themeLoader.js",
        "features/loaders/fontLoader.js",
        "index.js",
        "plugins/pluginLib.js",
        "plugins/pluginLoader.js",
        "features/setWallpaper.js",
        "features/betterDropmenus.js",
        "etc/liveEditor.js",
        "etc/bwrdBadge.js",
        "etc/autoSaveSettings.js",
        "etc/postInstallPopup.js",
        "etc/checkForUpdate.js"
      ],
      "css": [
        "etc/css/hideAll.css"
      ],
      "matches": [
        "*://*.wearedevs.net/*"
      ],
      "exclude_matches": [
        "*://*/*login*",
        "*://*/*register*",
        "*://*/*recovery*"
      ]
    },
    {
      "css": [
        "etc/css/autoDark.css"
      ],
      "js": [
        "features/loaders/fontLoader.js"
      ],
      "matches": [
        "*://pastebin.com/raw/TGz5N9Xa"
      ]
    }
  ],
  "icons": {
    "16": "etc/img/current/bwrdlogo.png",
    "48": "etc/img/current/bwrdlogo.png",
    "128": "etc/img/current/bwrdlogo-text.png"
  },
  "options_ui": {
    "page": "settings/index.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_popup": "settings/opensettings.html"
  },
  "permissions": [
    "storage",
    "*://*.wearedevs.net/*",
    "*://betterwrd.vercel.app/*",
    "*://flameplus.vercel.app/*",
    "*://pastebin.com/*",
    "*://www.stathat.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7aa9c67d-1025-4818-8825-bd82757491b9}"
    }
  }
}