App Specific Dark Mode in Mac OS X (Tested on 10.15.1 Catalina)

.bash_profile

lightMode() {
	if [[ "$#" != 2 ]]; then
		echo "Must pass exactly 2 arguments."
		echo "Usage: lightMode <App_Name> <Yes|No>"
		return 2
	fi

	if [[ "$2" != "Yes" && "$2" != "No" ]]; then
		echo "2nd argument must be Yes or No."
		echo "Usage: lightMode <App_Name> <Yes|No>"
		return 2
	fi

	bid=( $(osascript -e 'id of app "'"$1"'"') )
	defaults write $bid NSRequiresAquaSystemAppearance -bool $2
}