+providing a prefix when viewing a signed or encrypted message, or
+by providing a prefix when reloading the message in notmuch-show
+mode."
+ :type 'boolean
+ :group 'notmuch-crypto)
+
+(defface notmuch-crypto-part-header
+ '((t (:foreground "blue")))
+ "Face used for crypto parts headers."
+ :group 'notmuch-crypto
+ :group 'notmuch-faces)