With the latest beta version of Windows 10 Insider Preview Build 17666, (RS5) Microsoft added an updated Dark Theme for File Explorer to match the rest of Windows 10’s dark aesthetic. That means, Now you can now change the File Explorer color to black in Windows 10 without using third-party applications.
How to enable dark mode in Windows 10 File Explorer?
The dark mode is helpful while working in low light conditions. Popular smartphone operating systems and many popular apps offer a dark theme or dark mode to help users use smart devices without straining eyes under low light conditions. And now Windows 10 Also Started testing ( Redstone 5 ) to offer Dark Theme Mode For File Explorer.
Previously when users enable the Dark mode in Windows 10, its effect was limited to preinstalled apps like Windows Store, Calendar, Mail, and other Universal Windows Platform applications. That means dark mode will have no effect on the File Explorer. But now with Windows 10 Redstone 5 build 17666, When you enable the dark mode in Settings > Personalization > Colors. Under Choose your default app mode, click the Dark radio button.
This will be enabled in all support applications and interfaces, including in File Explorer. Microsoft has also added dark theme support to the File Explorer context menu, as well as the Common File Dialog (aka the Open and Save dialogs).
Just like it’s the case with preview builds, Microsoft has considered the user feedback while developing the feature. There are some unexpected light colors in File Explorer and Common File dialog that Microsoft is working to fix the issue. The File Explorer could be updated in next preview builds with improved Dark Theme and similar changes ahead of the public launch for everyone in the fall. Also Read How to Enable Focus Assist in the Windows 10 April 2018 Update