Windows 11, like in the previous version, includes a solid pixel border in File Explorer and other apps. While this visual element helped with the design experience in Windows 10, the new version of the OS introduces a new UI using different visual elements, making the pixel around borders unnecessary.
If you don’t like to see windows with one solid pixel around the borders, it’s easy to remove this by disabling the color accent option in the new Windows 11 Settings. Also, turning off this feature will fix the white font for text and other elements in the title bar of the new File Explorer.
Remove accent color pixel around windows borders in Windows 11
To remove the accent color pixel around windows borders, use these steps:
Open Settings in Windows 11.
Click on Personalization.
Click the Colors page on the right side.
Turn off the Show accent color on title bars and windows borders toggle switch.
Once you complete the steps, windows for File Explorer and other apps will no longer show a colored pixel around the borders.
Thanks to YouTube viewer @caleb for pointing the option out in my build 22000.51 walkthrough video.