Examine source code of FloatSub — Floating Subtitles

{
  "manifest_version": 3,
  "name": "FloatSub — Floating Subtitles",
  "version": "1.0.0",
  "description": "Stop missing the action. Float your subtitles anywhere on screen and drag them wherever your eyes already are.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "https://www.netflix.com/*",
    "https://www.primevideo.com/*",
    "https://www.disneyplus.com/*",
    "https://www.viki.com/*",
    "https://nozmceqoyeakuhyrzmqx.supabase.co/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.netflix.com/*",
        "https://www.primevideo.com/*",
        "https://www.disneyplus.com/*",
        "https://www.viki.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "floatsub.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "floatsub@floatsub.netlify.app",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}