chromium/chrome/test/data/extensions/delayed_install/v1/manifest.json

{
  "name": "Delayed Install Test",
  "version": "1.0",
  "manifest_version": 3,
  "description": "Tests extension updates when delayed.",
  "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8c4fBSPZ6utYoZ8NiWF/DSaimBhihjwgOsskyleFGaurhi3TDClTVSGPxNkgCzrz0wACML7M4aNjpd05qupdbR2d294jkDuI7caxEGUucpP7GJRRHnm8Sx+y0ury28n8jbN0PnInKKWcxpIXXmNQyC19HBuO3QIeUq9Dqc+7YFQIDAQAB",
  "options_ui": {
    "page": "popup.html",
    "open_in_tab": false
  }
}