How do I set my theme in the Teacher App on my Android device?
In Settings, teachers can choose between three app theme options, Light, Dark, and Same as Device.
Open User Menu
In the Dashboard, tap the Menu icon.
Tap the Settings link.
Open App Theme
Tap the App Theme.
To select preferred theme tap Light  for dark text on light background, Dark  for light text on a dark background and Same as device  reflects the current devices theme.