`(helm-selection ((t (:foreground ,zenburn-blue+1 :background ,zenburn-bg-1))))

   `(helm-selection ((t (:foreground ,zenburn-blue+1 :background ,zenburn-bg+1))))

   `(diff-file-header ((t (:background ,zenburn-fg-1))))
   `(diff-header ((t (:background ,zenburn-bg+3))))

   `(diff-file-header ((t (:background ,zenburn-bg+2))))
   `(diff-header ((t (:background ,zenburn-bg+1))))