How to change the headline of Huawei mobile phone to black and white?

Huawei mobile phone headlines changed from black and white to color by:

1, click Desktop Settings first; After entering the settings, select Display.

2. Click on the display screen and select color adjustment and color temperature; Click Select Default and the color settings will be restored.

3. If you want to set other colors, such as bright colors, you can move the small plus sign into the color circle.