Are you serious about this? WML is replaced by Skype so it is really not a good way to add old "dropped" things on 3.1
The problem with this is that 3.1 feels old for users when it contains "old" not supported options like this.
I will move your topicWhile phpBB.com is offline, support related to styles themselves (code questions, "How do I do XYZ?", etc.) should be asked in the temporary MOD/Styles support forums.