Add support for version control modeline status

This is built-in, but is left empty by default.

README.org

@@ -255,6 +255,7 @@ the "full support" may not be 100% true…
 + transient (pop-up windows like Magit's)
 + treemacs
 + undo-tree
++ vc (built-in mode line status for version control)
 + visual-regexp
 + wgrep
 + which-key
@@ -293,7 +294,6 @@ context before assessing its aesthetics or specific requirements.
 Use =M-x list-faces-display= to get these.
 
 + tty-menu
-+ vc-{conflict-state,state-base}…
 
 Note that the themes do provide support for =org-mode=, but some of
 these interfaces have been decided based on indirect experience.  If you

modus-operandi-theme.el

@@ -1515,6 +1515,16 @@ between foreground and background is >= 7:1)."
    `(undo-tree-visualizer-default-face ((,class (:foreground ,fg-alt))))
    `(undo-tree-visualizer-register-face ((,class (:foreground ,magenta-intense))))
    `(undo-tree-visualizer-unmodified-face ((,class (:foreground ,green-intense))))
+   ;;;; vc
+   `(vc-conflict-state ((,class (:foreground ,red-active :weight bold))))
+   `(vc-edited-state ((,class (:foreground ,green-active))))
+   `(vc-locally-added-state ((,class (:foreground ,cyan-active))))
+   `(vc-locked-state ((,class (:foreground ,magenta-active :weight bold))))
+   `(vc-missing-state ((,class (:foreground ,yellow-active :weight bold))))
+   `(vc-needs-update-state ((,class (:foreground ,blue-active :weight bold))))
+   `(vc-removed-state ((,class (:foreground ,red-active :weight bold))))
+   `(vc-state-base ((,class (:foreground ,fg-active))))
+   `(vc-up-to-date-state ((,class (:foreground ,fg-active))))
    ;;;; visual-regexp
    `(vr/group-0 ((,class (:inherit modus-theme-subtle-cyan))))
    `(vr/group-1 ((,class (:inherit modus-theme-subtle-yellow))))

modus-vivendi-theme.el

@@ -1515,6 +1515,16 @@ between foreground and background is >= 7:1)."
    `(undo-tree-visualizer-default-face ((,class (:foreground ,fg-alt))))
    `(undo-tree-visualizer-register-face ((,class (:foreground ,magenta-intense))))
    `(undo-tree-visualizer-unmodified-face ((,class (:foreground ,green-intense))))
+   ;;;; vc
+   `(vc-conflict-state ((,class (:foreground ,red-active :weight bold))))
+   `(vc-edited-state ((,class (:foreground ,green-active))))
+   `(vc-locally-added-state ((,class (:foreground ,cyan-active))))
+   `(vc-locked-state ((,class (:foreground ,magenta-active :weight bold))))
+   `(vc-missing-state ((,class (:foreground ,yellow-active :weight bold))))
+   `(vc-needs-update-state ((,class (:foreground ,blue-active :weight bold))))
+   `(vc-removed-state ((,class (:foreground ,red-active :weight bold))))
+   `(vc-state-base ((,class (:foreground ,fg-active))))
+   `(vc-up-to-date-state ((,class (:foreground ,fg-active))))
    ;;;; visual-regexp
    `(vr/group-0 ((,class (:inherit modus-theme-subtle-cyan))))
    `(vr/group-1 ((,class (:inherit modus-theme-subtle-yellow))))