Flag color sync in Apple Mail with Gmail and Yahoo?

It appears that colored flags sync through iCloud for your @me.com email address. Is there a way to get the colored flags to sync across computers for a Yahoo or Google account? For example, if I flag an email in my Gmail account with a Green Flag on my Apple desktop computer in Apple Mail, is there a way to get the flag to show up as Green on my laptop in Apple Mail? Currently, the fact that the email is flagged syncs across computers and accounts, but not the particular color of the flag. Also, highlighting an email a certain color does not appear to sync, even for my @me.com account. And lastly, now that Apple has switched from Mobile Me to iCloud, they have given up Mail Rule syncing... is there a way to get my Apple Mail Rules to sync between computers? Thanks!