Toggle between Terminal.app themes as macOS dark mode is changed

Toggle Dark Mode.applescript

# I put this within an *.app file via Automator and added it to my user's "Login Items"
# It sets the theme every 5 minutes

repeat
	tell application "System Events"
		if dark mode of appearance preferences is true then
			set terminalTheme to "custom_dark"
		else
			set terminalTheme to "custom_light"
		end if
	end tell
	
	
	tell application "Terminal"
		# New windows/tabs
		set default settings to settings set terminalTheme
		
		# Existing windows/tabs
		set current settings of tabs of windows to settings set terminalTheme
	end tell
	
	delay 300
end repeat