Variable: preview-colors
preview-colors is a buffer-local variable defined in preview.el.
Documentation
Color setup list.
An array with elements 0, 1 and 2 for background, foreground and border colors, respectively. Each element is a list of 3 real numbers between 0 and 1, or nil of nothing special should be done for the color
Source Code
;; Defined in ~/.emacs.d/elpa/auctex-14.1.2/preview.el
(defvar-local preview-colors nil
"Color setup list.
An array with elements 0, 1 and 2 for background,
foreground and border colors, respectively. Each element
is a list of 3 real numbers between 0 and 1, or nil
of nothing special should be done for the color")