Examine source code of Tabnice

{
  "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"
    }
  },
  "version": "1.0.0",
  "author": "Arvin<webappsniper@gmail.com>",
  "name": "Tabnice",
  "description": "Replace new tab page with a personal dashboard to help you get focused, stay organized, and keep motivated to achieve your goals.",
  "permissions": [
    "storage",
    "tabs",
    "*://tabnice.com/*",
    "*://localhost/*"
  ],
  "background": {
    "scripts": [
      "background.806a2724.js"
    ]
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.plasmo.com/*"
      ],
      "js": [
        "plasmo.5629a271.js"
      ],
      "css": []
    }
  ],
  "web_accessible_resources": [
    "raw.js",
    "resources/**/*.svg",
    "resources/**/*.jpg",
    "resources/**/*.png",
    "resources/**/*.json"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{56002e56-657c-4d7e-8458-bff3c3d1662d}"
    }
  }
}