If you are working for long hours on the system and you do not want to strain your eyes, you can easily switch to the dark theme. By default, the system will be in light mode.

You can change the screen mode by following the below-given steps:

Step 1: Go to the profile icon and Click on it.

Click on the theme option and you will see two options light mode and Dark mode. By default, it will be set to light mode. 

Click on the Specific mode you want the system in. In dark mode, the system will look as follows: