Examine source code of Locked In

{
  "icons": {
    "16": "icon16.plasmo.e422ca3e.png",
    "32": "icon32.plasmo.1cfff917.png",
    "48": "icon48.plasmo.919a2e57.png",
    "64": "icon64.plasmo.c820e3b3.png",
    "128": "icon128.plasmo.80ac0f76.png"
  },
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "16": "icon16.plasmo.e422ca3e.png",
      "32": "icon32.plasmo.1cfff917.png",
      "48": "icon48.plasmo.919a2e57.png",
      "64": "icon64.plasmo.c820e3b3.png",
      "128": "icon128.plasmo.80ac0f76.png"
    },
    "default_popup": "popup.html"
  },
  "version": "0.0.11",
  "author": "Thang Nguyen <tn2468@columbia.edu>",
  "name": "Locked In",
  "description": "Get Locked in. Stay focus. Block out distraction",
  "background": {
    "scripts": [
      "static/background/index.js"
    ]
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://getlockedin-web.vercel.app/dashboard",
        "https://getlockedin.thangnguyen.me/dashboard",
        "http://localhost:3000/dashboard"
      ],
      "js": [
        "dashboard.c8626371.js"
      ],
      "css": []
    },
    {
      "matches": [
        "https://getlockedin-web.vercel.app/blocked/*",
        "https://getlockedin.thangnguyen.me/blocked/*",
        "http://localhost:3000/blocked/*"
      ],
      "js": [
        "blocked.0defa97f.js"
      ],
      "css": []
    }
  ],
  "host_permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "tn2468@columbia.edu"
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "https://getlockedin-web.vercel.app/*",
        "https://getlockedin.thangnguyen.me/*",
        "http://localhost:3000/*"
      ],
      "resources": [
        "dashboard.dcbcf120.css"
      ]
    },
    {
      "matches": [
        "https://getlockedin-web.vercel.app/*",
        "https://getlockedin.thangnguyen.me/*",
        "http://localhost:3000/*"
      ],
      "resources": [
        "dashboard.dcbcf120.css"
      ]
    }
  ]
}