Activating a dark theme in a Point of Sale (POS) system can be beneficial for various reasons, such as reducing eye strain, saving energy on devices with OLED or AMOLED screens, and providing a modern aesthetic.
There are 2 ways to change your POS to Dark Theme:
Choose which feature you are using:
One is under POS Settings page
Click Settings dropdown from the left pane of the page and click POS Settings
Toggle on Use Dark Theme
That's it you may now view your POS in Dark Theme
Other way is in POS Catalog
Toggle on the weather icon from the right top corner of the POS Catalog Screen
That's it you may now view your POS in Dark Theme