The personalization has been improved in the Win 10061 Preview, and the system colors can be set at will, as long as you open "settings"--"personalization"--you'll find some new options compared to the previous version. After clicking on the "Color" option on the left, there are three options on the right:
When you turn on the automatically select my background color option, the system will automatically select the appropriate color as the system color from the desktop wallpaper you set up, and the system will provide you with a range of recommended color values when you close this option, as shown in the following figure.
This feature is overlapping with the desktop right-click menu-Personalization-colors, and in the new version-personalization has added a desktop background setting, and in future versions Microsoft may be able to completely eliminate traditional personalization options.
Show the colors on the taskbar and Start menu
This option enables you to set whether custom system colors are displayed in the taskbar, Start menu, and Notification Center.
Make the transparent Start menu
This option allows you to choose whether to display transparency in the taskbar, Start menu, and Notification Center area.
Open the hidden "dark line" theme style
In addition, WINDOWS10 preview 10061 also hides a feature: by modifying the registry to allow more modern application background to appear black, with the default dark theme style, so that the desktop version of WIN10 looks more like Windows Phone. See how to turn on the "Night" theme mode in Win10 Preview 10056.