Variable: preview-image-type
preview-image-type is a customizable variable defined in preview.el.
Value
png
Documentation
Image type to be used in images.
Source Code
;; Defined in ~/.emacs.d/elpa/auctex-14.1.2/preview.el
(defcustom preview-image-type 'png
"Image type to be used in images."
:group 'preview-gs
:type (append '(choice)
(mapcar (lambda (symbol) (list 'const (car symbol)))
preview-image-creators)
'((symbol :tag "Other"))))