Wonder if anyone is using color-theme anymore; seems like wasted effort to just bail on all of the great themes in there. Today I wanted to get color-theme-retro-green at least working, and here is what it took against 6.5.5 of the Marmalade release:
(defun gcr/plist-to-alist (ls) "Convert a plist to an alist. Primarily for old color-theme themes." (let ((result nil)) (while ls (add-to-list 'result (cons (car ls) (cadr ls))) (setq ls (cddr ls))) result)) (defalias 'plist-to-alist 'gcr/plist-to-alist)
Make a change in color-theme.el’s color-theme-retro-green to initialize face and faces with an empty list:
;; Build a list of faces without parameters (let ((old-faces (face-list)) (faces '()) (face '()) (foreground (or color "green")))
Didn’t find a Github project to submit a patch so I emailed the owner.