Today, Microsoft is rolling out Windows 10 Build 18234 (19H1) for Windows Insiders in the Skip Ahead Ring. Build 18234 doesn’t come with any new features as we’re still in the early days of development of this feature update.  For those who enjoy the Windows 10 Dark Theme for file explorer, it has been ported over to this build. […]

from https://www.bleepingcomputer.com/news/microsoft/windows-10-build-18234-19h1-released-to-insiders-with-improvements/