Examine source code of Open Tabs

{
  "icons": {
    "16": "icon16.plasmo.192fd1f9.png",
    "32": "icon32.plasmo.4d28be0c.png",
    "48": "icon48.plasmo.8337b32e.png",
    "64": "icon64.plasmo.c5fef9ed.png",
    "128": "icon128.plasmo.20a0583f.png"
  },
  "manifest_version": 2,
  "browser_action": {
    "default_icon": {
      "16": "icon16.plasmo.192fd1f9.png",
      "32": "icon32.plasmo.4d28be0c.png",
      "48": "icon48.plasmo.8337b32e.png",
      "64": "icon64.plasmo.c5fef9ed.png",
      "128": "icon128.plasmo.20a0583f.png"
    },
    "default_popup": "popup.html"
  },
  "version": "0.1.0",
  "author": "shih",
  "name": "Open Tabs",
  "description": "Manage your open tabs better!",
  "background": {
    "scripts": [
      "background.806a2724.js"
    ]
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "tabGroups",
    "bookmarks",
    "sessions",
    "scripting",
    "system.storage",
    "history",
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.5290d0e2.js"
      ],
      "css": [
        "content.13663512.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "content.86ea94bd.css",
    "content.5becae20.css",
    "content.7e92d175.css",
    "content.d59caa1a.css",
    "content.7b39a51e.css",
    "content.2dc2e6a9.css",
    "content.eb729b68.css",
    "content.329e2c29.css",
    "content.9fad3274.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{504bbb0a-3caf-4fca-95aa-f64e46daad71}"
    }
  }
}