Set OmniFocus Light vs Dark Mode

I have an Applescript question

This script works fine:

tell application "OmniFocus"
	set value of preference id "OFIColorPaletteIdentifier" to "builtin:OmniFocus Light"
end tell

But this script also changes it to light mode or keeps it in dark mode.

How do I switch it to dark mode by Applescript?

tell application "OmniFocus"
	set value of preference id "OFIColorPaletteIdentifier" to "builtin:OmniFocus Dark"
end tell

Thank you for this helpful solution