Examine source code of YouTube Nuke Speed Control

{
  "manifest_version": 2,
  "name": "Video Speed Control",
  "version": "1.5.0",
  "description": "Control YouTube video playback speed with persistent settings, in-player slider, and native control sync",
  "author": "Nuke",
  "homepage_url": "https://github.com/yourusername/youtubeSpeed",
  "browser_specific_settings": {
    "gecko": {
      "id": "video-speed-control@yourdomain.com",
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_title": "Video Speed Control",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*",
        "*://youtube.com/*"
      ],
      "js": [
        "content/content.js"
      ]
    }
  ],
  "developer": {
    "name": "Nuke",
    "url": "https://github.com/yourusername/youtubeSpeed"
  },
  "incognito": "spanning"
}