* gnus-art.el (gnus-header-from, gnus-header-subject, gnus-header-name)
(gnus-header-content)
* gnus-cite.el (gnus-cite-10)
* gnus-srvr.el (gnus-server-closed)
* gnus.el (gnus-group-mail-1, gnus-group-mail-1-empty)
(gnus-group-mail-2, gnus-group-mail-2-empty, gnus-group-mail-3)
(gnus-group-mail-3-empty, gnus-group-mail-low)
(gnus-group-mail-low-empty, gnus-splash)
* message.el (message-header-to, message-header-cc)
(message-header-subject, message-header-other, message-header-name)
(message-header-xheader, message-separator, message-cited-text)
(message-mml): Lighten colors of faces used for dark background.