Examine source code of Video Speed Controller

{
  "manifest_version": 3,
  "name": "Video Speed Controller",
  "author": "Seoxiis",
  "version": "2.0.1",
  "description": "Control the playback speed of HTML5 videos",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "128": "icons/icon-128.png",
    "256": "icons/icon-256.png",
    "512": "icons/icon-512.png",
    "1024": "icons/icon-1024.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "64": "icons/icon-64.png",
      "128": "icons/icon-128.png",
      "256": "icons/icon-256.png",
      "512": "icons/icon-512.png",
      "1024": "icons/icon-1024.png"
    },
    "default_title": "Video Speed Controller",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "browser-compat.js",
      "utils.js",
      "background.js"
    ]
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "storage",
    "scripting",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "browser-compat.js",
        "locales.js",
        "speed-display.js",
        "floating-icon.js"
      ],
      "css": [
        "floating-icon.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "inject-styles.css",
        "floating-icon.css",
        "icons/icon-32.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "video-speed-controller@seoxiis",
      "strict_min_version": "109.0"
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  }
}