e-mail account colors

I have two accounts and would like to mark the messages in the Inbox for each account in a different color (Account 1 red, Account 2 green) - would be nice to highlight the Account folder in same color. So, incoming mail would be highlighted in a different color in the Global InBox.

Can this be done (maybe with a Tag,etc.)? I don’t see any settings in the Accounts options.

I was able to do this in Outlook Express with a Message Rule - "if “To” Contained Account address 1, highlight in red; if “To” Contained Account Address 2, highlight in green.

I also can do this in Thunderbird with a Message Filter using a Tag or with an Add-on called “Account Colors.”