Examine source code of Video Speed Controllor

{
  "manifest_version": 3,
  "name": "Video Speed Controller Plus",
  "version": "1.0",
  "description": "Provides granular control over video playback speed (from 0.1x to 5x) across various streaming platforms, along with customizable keyboard shortcuts and per-site speed preferences.",
  "action": {
    "default_popup": "popup.html",
    "default_icon": "video_speed_controller_plus.png"
  },
  "icons": {
    "128": "video_speed_controller_plus.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "g1elnoradillonusw4876@hotmail.com"
    }
  }
}