Dahua NVR100 series User Manual page 461

Here you can click Add holidays box to add a new holiday and then click Save button to save.
5.10.5.2 Display
Display interface includes GUI, TV adjust, Tour and Customized split.
5.10.5.2.1 Display
Here you can set background color and transparency level. See Figure 5-116.
Please refer to the following sheet for detailed information.
Parameter
Resolution
Figure 5-115
Figure 5-116
Function
There are four options:
1280×720, 1024×768. Please note the system needs to reboot to
activate current setup.
1920×1080, 1280×1024(default),
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