Make "Unread Mail" one of the categories. The current default categories only show mail in the inbox, not in the folders. I have setup filters to have mail automatically go to folders based on who the sender is, so much of the mail is missing. The Unread search folder shows them all at once and makes it easy to delete mail I don't need to read. Without that shortcut, I will have to go back to the old Yahoo mail setup. Please make "Unread Mail" one of the categories!! And make the categories customizable. Thank you.