`@media (prefers-color-scheme: dark)` is the recommended syntax for specifying Dark Mode styles.
Created attachment 358650 [details] Patch
Comment on attachment 358650 [details] Patch Clearing flags on attachment: 358650 Committed r239760: <https://trac.webkit.org/changeset/239760>
All reviewed patches have been landed. Closing bug.
<rdar://problem/47134953>