In modern version of emacs, the preferred way to customize colors is to use the built-in customize facility. M-x customize-faces
This is a task which has to be done by everybody separately, and cannot thus be performed as part of mf-init. The reasons are taste, but also environment differences. Technically, the preferred way (the one chosen, at least) is in addition to use the X resources, and these are not shared.
Here is the procedure. Open a buffer displaying the fonts you want to change (1); use M-x list-faces-display to create a *Faces* buffer, (2) which will show the name of the "faces" you need to customize; use M-x list-colors-display to create the *Colors* buffer (3), which will show the name of the colors (using mf-init, these buffers will be shown by default in the "FRAMEPOP" frame, but you can "switch to" them in any other frame); "visit" your resource file (4). Last, open the *scratch* buffer (5).
Now, in (5), "evaluate" (by pressing Ctrl-j at the end of the line where they are written) lisp forms such as:
(set-face-foreground 'message-cited-text-face "MediumTurquoise")Emacs.message-cited-text-face.attributeForeGround: MediumTurquoiseThese settings affect the current emacs session. For them to affect the next, load your resource file with the shell command:
xrdb -l dt.resources