-apple-system-blue : rgba(0, 0, 0, 0)
-apple-system-brown : rgba(0, 0, 0, 0)
-apple-system-gray : rgba(0, 0, 0, 0)
-apple-system-green : rgba(0, 0, 0, 0)
-apple-system-orange : rgba(0, 0, 0, 0)
-apple-system-pink : rgba(0, 0, 0, 0)
-apple-system-purple : rgba(0, 0, 0, 0)
-apple-system-red : rgba(0, 0, 0, 0)
-apple-system-yellow : rgba(0, 0, 0, 0)
-apple-wireless-playback-target-active : rgba(0, 0, 0, 0)
current-color with inherited -apple-system-blue : rgba(0, 0, 0, 0)