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manifest.json

{
  "manifest_version": 3,
  "name": "YouTube Theatre Mode",
  "short_name": "YouTube Theatre",
  "description": "A more immersive theatre mode for YouTube",
  "version": "1.0.1",
  "icons": {
    "16": "icons/16.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6e2a1110-475c-49c6-9515-5c07b2b614a2}",
      "strict_min_version": "109.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "style.css",
        "index.js"
      ],
      "matches": [
        "*://*.youtube.com/*"
      ]
    }
  ]
}