Examine source code of Browser Screen Time

{
  "name": "Browser Screen Time",
  "short_name": "Screen Time",
  "version": "1.3.0",
  "description": "Keep track of the amount of time you spend on the internet",
  "browser_specific_settings": {
    "gecko": {
      "id": "{68e1a6af-c5f7-4cb2-ad46-170e1a2acd01}",
      "strict_min_version": "109.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Screen Time",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icons/16px.png",
      "32": "assets/icons/32px.png",
      "64": "assets/icons/64px.png",
      "128": "assets/icons/128px.png",
      "256": "assets/icons/256px.png",
      "512": "assets/icons/512px.png",
      "1024": "assets/icons/1024px.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "videoCheck.js"
      ],
      "run_at": "document_idle",
      "all_frames": true
    }
  ],
  "icons": {
    "16": "assets/icons/16px.png",
    "32": "assets/icons/32px.png",
    "64": "assets/icons/64px.png",
    "128": "assets/icons/128px.png",
    "256": "assets/icons/256px.png",
    "512": "assets/icons/512px.png",
    "1024": "assets/icons/1024px.png"
  },
  "permissions": [
    "storage",
    "idle",
    "tabs",
    "notifications"
  ],
  "manifest_version": 3
}