Switching TextExpander on Mac Between Light and Dark Mode
TextExpander on Mac follows your Mac’s system appearance settings, so it doesn’t have its own light/dark mode setting directly in the apps Preferences pane. If your Mac is set to Auto, TextExpander’s appearance will switch automatically along with your system.
To switch to light mode: go to System Settings (or System Preferences) and set your Mac’s appearance to Light. TextExpander will match it automatically.
Want TextExpander to stay in light mode even when your Mac is in dark mode?
You can override this with a Terminal command:
- Open Terminal (⌘ + Space, type “Terminal,” press Enter — or find it in Applications > Utilities).
- Copy and paste this command, then press Enter:
defaults write com.smileonmymac.textexpander NSRequiresAquaSystemAppearance -bool yes
- Quit and relaunch TextExpander.
TextExpander will now stay in light mode regardless of your system appearance.
To undo the override and go back to matching your system preferences, open Terminal again and run:
defaults delete com.smileonmymac.textexpander NSRequiresAquaSystemAppearance
Would you like to see an option to change this built-in to TextExpander’s Preferences?
Drop an 
(light) or 
(dark) below for your preference!