> chrome.devtools.panels.create('診断', ...)
< legacy.js:52 Uncaught (in promise) TypeError: Invalid view ID '診断'
at new SimpleView (legacy.js:52:35668)
at new K (extensions.js:5:41686)
at G.onCreatePanel (extensions.js:5:23553)
at G.onmessage (extensions.js:5:38187)
Apparently the Panel title needs to satisfy the `isExtendedKebabCase` check, which appears to against the regex `/^([a-z0-9]+(?:-[a-z0-9]+)*\.)*[a-z0-9]+(?:-[a-z0-9]+)*$/`.
This caught me off guard, since the built-in panels have localized titles...