Examine source code of PT Plugin Plus

{
  "name": "__MSG_manifest_appName__",
  "short_name": "__MSG_manifest_shortName__",
  "version": "1.6.0",
  "description": "__MSG_manifest_appDescription__",
  "manifest_version": 2,
  "default_locale": "zh_CN",
  "homepage_url": "https://github.com/pt-plugins/PT-Plugin-Plus",
  "browser_action": {
    "default_icon": "assets/icon-19.png",
    "default_title": "__MSG_manifest_appName__"
  },
  "permissions": [
    "activeTab",
    "clipboardRead",
    "clipboardWrite",
    "storage",
    "contextMenus",
    "notifications",
    "http://*/*",
    "https://*/*",
    "unlimitedStorage"
  ],
  "optional_permissions": [
    "downloads",
    "cookies"
  ],
  "icons": {
    "16": "assets/icon.png",
    "19": "assets/icon-19.png",
    "64": "assets/icon-64.png",
    "128": "assets/icon-128.png"
  },
  "options_ui": {
    "page": "index.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "libs/types.expand.js",
      "libs/jquery/jquery-3.3.1.min.js",
      "libs/Base64.js",
      "js/background/libs.js",
      "js/background/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "exclude_matches": [
        "https://fonts.google.com/*"
      ],
      "css": [
        "assets/base.css",
        "libs/materialIcons/content_style.css",
        "libs/notice/noticejs.css",
        "libs/basicContext/basicContext.min.css",
        "libs/basicContext/themes/default.min.css"
      ],
      "js": [
        "libs/types.expand.js",
        "libs/jquery/jquery-3.3.1.min.js",
        "libs/Base64.js",
        "libs/notice/notice.js",
        "libs/basicContext/basicContext.min.js",
        "libs/drag.js",
        "js/content/libs.js",
        "js/content/content.js"
      ]
    }
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "web_accessible_resources": [
    "libs/materialIcons/*.woff2",
    "assets/*",
    "resource/*"
  ],
  "omnibox": {
    "keyword": "pt"
  },
  "minimum_chrome_version": "1.0.0",
  "version_name": "1.6.0.ba3d87e",
  "update_url": "https://raw.githubusercontent.com/pt-plugins/PT-Plugin-Plus/master/update/index.xml",
  "browser_specific_settings": {
    "gecko": {
      "id": "{c6235d2f-5748-4e58-a66c-a2e36ec788d9}"
    }
  }
}