Gary out disabled buttons

android/app/src/main/java/com/reactnativenavigation/utils/ViewUtils.java

 package com.reactnativenavigation.utils;
 
+import android.graphics.Color;
 import android.graphics.PorterDuff;
 import android.graphics.PorterDuffColorFilter;
 import android.graphics.drawable.Drawable;
         });
     }
 
-    public static void tintDrawable(Drawable drawable, int tint) {
-        drawable.setColorFilter(new PorterDuffColorFilter(tint, PorterDuff.Mode.SRC_IN));
+    public static void tintDrawable(Drawable drawable, int tint, boolean enabled) {
+        drawable.setColorFilter(new PorterDuffColorFilter(enabled ? tint : Color.LTGRAY, PorterDuff.Mode.SRC_IN));
     }
 
     public static float convertDpToPixel(float dp) {

android/app/src/main/java/com/reactnativenavigation/views/TitleBarButton.java

     }
 
     private void setIconColor() {
-        ViewUtils.tintDrawable(buttonParams.icon, buttonParams.color.getColor());
+        ViewUtils.tintDrawable(buttonParams.icon, buttonParams.color.getColor(), buttonParams.enabled);
     }
 
     private void setTextColor() {