Why doesn't Huawei mobile phone display the yellow calendar in the calendar?

It may be a setting problem, please refer to the following method settings:

1, first unlock the phone and open "Calendar" to enter; As shown in the figure.

2. Click the three points in the upper right corner after entering the page; As shown in the figure.

3. Then click "Settings"; As shown in the figure.

4. Then click "Function Settings"; As shown in the figure.

5. Then select "Yellow calendars should be avoided"; As shown in the figure.

6. Finally, click the button on the right to complete the setting; As shown in the figure.