properly handle menu item color updating

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/FavoritesActivity.kt

@@ -20,6 +20,20 @@ class FavoritesActivity : SimpleActivity(), RefreshRecyclerViewListener {
         updateFavorites()
     }
 
+    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+        menuInflater.inflate(R.menu.menu_favorites, menu)
+        updateMenuItemColors(menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
+            R.id.add_favorite -> addFavorite()
+            else -> return super.onOptionsItemSelected(item)
+        }
+        return true
+    }
+
     private fun updateFavorites() {
         val favorites = ArrayList<String>()
         config.favorites.mapTo(favorites) { it }
@@ -40,19 +54,6 @@ class FavoritesActivity : SimpleActivity(), RefreshRecyclerViewListener {
         }
     }
 
-    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
-        menuInflater.inflate(R.menu.menu_favorites, menu)
-        return true
-    }
-
-    override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        when (item.itemId) {
-            R.id.add_favorite -> addFavorite()
-            else -> return super.onOptionsItemSelected(item)
-        }
-        return true
-    }
-
     override fun refreshItems() {
         updateFavorites()
     }

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/MainActivity.kt

@@ -71,6 +71,11 @@ class MainActivity : SimpleActivity() {
         }
     }
 
+    override fun onResume() {
+        super.onResume()
+        invalidateOptionsMenu()
+    }
+
     override fun onStop() {
         super.onStop()
         searchMenuItem?.collapseActionView()
@@ -84,6 +89,7 @@ class MainActivity : SimpleActivity() {
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         menuInflater.inflate(R.menu.menu, menu)
         setupSearch(menu)
+        updateMenuItemColors(menu)
         return true
     }
 

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/ReadTextActivity.kt

@@ -52,6 +52,7 @@ class ReadTextActivity : SimpleActivity() {
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         menuInflater.inflate(R.menu.menu_editor, menu)
         setupSearch(menu)
+        updateMenuItemColors(menu)
         return true
     }
 

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/SettingsActivity.kt

@@ -2,6 +2,7 @@ package com.simplemobiletools.filemanager.pro.activities
 
 import android.content.Intent
 import android.os.Bundle
+import android.view.Menu
 import com.simplemobiletools.commons.dialogs.ChangeDateTimeFormatDialog
 import com.simplemobiletools.commons.dialogs.ConfirmationDialog
 import com.simplemobiletools.commons.dialogs.SecurityDialog
@@ -39,6 +40,12 @@ class SettingsActivity : SimpleActivity() {
         setupEnableRootAccess()
         updateTextColors(settings_holder)
         setupSectionColors()
+        invalidateOptionsMenu()
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        updateMenuItemColors(menu)
+        return super.onCreateOptionsMenu(menu)
     }
 
     private fun setupSectionColors() {