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manifest.json

{
  "manifest_version": 3,
  "name": "21:9 Window Manager",
  "version": "1.0",
  "description": "Centers the browser at 16:9 as well as periodically shifting the window position by a few pixels to prevent OLED burn-in.",
  "permissions": [
    "windows",
    "system.display"
  ],
  "background": {
    "service_worker": "background.js"
  },
  "action": {},
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}