Enable and disable colorful major icons.

Close #182.

doom-modeline-segments.el

@@ -380,7 +380,13 @@ mouse-1: Previous buffer\nmouse-3: Next buffer"
       (when icon
         (concat
          (if (doom-modeline--active)
-             icon
+             (if doom-modeline-major-mode-color-icon
+                 icon
+               (propertize icon 'face `(:inherit
+                                        ,(let ((props (get-text-property 0 'face icon)))
+                                           props (remove :inherit props))
+                                        :inherit
+                                        mode-line)))
            (propertize icon 'face `(:inherit
                                     ,(get-text-property 0 'face icon)
                                     :inherit

doom-modeline.el

@@ -4,7 +4,7 @@
 
 ;; Author: Vincent Zhang <seagle0128@gmail.com>
 ;; Homepage: https://github.com/seagle0128/doom-modeline
-;; Version: 2.3.2
+;; Version: 2.3.3
 ;; Package-Requires: ((emacs "25.1") (all-the-icons "1.0.0") (shrink-path "0.2.0") (dash "2.11.0"))
 ;; Keywords: faces mode-line