The old one had red/brow meteors and they also did the red/green animation when they hit the ground. Kinda hard to miss :P.
DO NOT TAKE IT AS AN OFFENCE! You might have have red/green colorblindness. (easy to find out with an Ishihara test)
I am indeed colorblind, it has been the cause of many a jokes by friends and family... ^^ I can at least see that it's felfire and not the regular red rain of fire. =)