Need help identifying colo(u)rs

[Steffen]

regarding

http://www.ldraw.org/cgi-bin/ptdetail.cgi?s=33172c01
http://www.ldraw.org/cgi-bin/ptdetail.cgi?s=33172c02

, I am not sure that really both green variants exist. I got the information about the 2 variants
from Philo a long time ago. Any help sheding light into this question is appreciated.
Additionally, I'm not sure if it is really useful to have those shortcuts,
as the green leaves are used in other contexts as well.
If the majority decides that the 2 shortcuts are superfluous - fine for me, we can delete them.