diff --git a/app/src/main/java/com/owncloud/android/ui/adapter/SyncedFolderAdapter.kt b/app/src/main/java/com/owncloud/android/ui/adapter/SyncedFolderAdapter.kt
index 215f23f1f4b3..f661455e19b0 100644
--- a/app/src/main/java/com/owncloud/android/ui/adapter/SyncedFolderAdapter.kt
+++ b/app/src/main/java/com/owncloud/android/ui/adapter/SyncedFolderAdapter.kt
@@ -15,6 +15,7 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageButton
 import android.widget.PopupMenu
+import androidx.appcompat.view.ContextThemeWrapper
 import androidx.annotation.VisibleForTesting
 import com.afollestad.sectionedrecyclerview.SectionedRecyclerViewAdapter
 import com.afollestad.sectionedrecyclerview.SectionedViewHolder
@@ -287,7 +288,9 @@ class SyncedFolderAdapter(
     }
 
     private fun onOverflowIconClicked(section: Int, item: SyncedFolderDisplayItem, view: View) {
-        val popup = PopupMenu(context, view).apply {
+        // NMC Customisation
+        val ctw = ContextThemeWrapper(context, R.style.CustomPopupTheme)
+        val popup = PopupMenu(ctw, view).apply {
             inflate(R.menu.synced_folders_adapter)
             setOnMenuItemClickListener { i: MenuItem -> optionsItemSelected(i, section, item) }
             menu
diff --git a/app/src/main/java/com/owncloud/android/ui/adapter/UploadListAdapter.java b/app/src/main/java/com/owncloud/android/ui/adapter/UploadListAdapter.java
index 76b390518690..2e14c90c9393 100755
--- a/app/src/main/java/com/owncloud/android/ui/adapter/UploadListAdapter.java
+++ b/app/src/main/java/com/owncloud/android/ui/adapter/UploadListAdapter.java
@@ -59,6 +59,7 @@
 import java.util.Optional;
 
 import androidx.annotation.NonNull;
+import androidx.appcompat.view.ContextThemeWrapper;
 
 /**
  * This Adapter populates a ListView with following types of uploads: pending, active, completed. Filtering possible.
@@ -623,7 +624,9 @@ private void showItemConflictPopup(User user,
                                        OCUpload item,
                                        String status,
                                        View view) {
-        PopupMenu popup = new PopupMenu(MainApp.getAppContext(), view);
+        //NMC Customisation
+        ContextThemeWrapper ctw = new ContextThemeWrapper(MainApp.getAppContext(), R.style.CustomPopupTheme);
+        PopupMenu popup = new PopupMenu(ctw, view);
         popup.inflate(R.menu.upload_list_item_file_conflict);
         popup.setOnMenuItemClickListener(i -> {
             int itemId = i.getItemId();
diff --git a/app/src/main/java/com/owncloud/android/ui/fragment/GalleryFragment.java b/app/src/main/java/com/owncloud/android/ui/fragment/GalleryFragment.java
index 14675325b717..9fce97c51285 100644
--- a/app/src/main/java/com/owncloud/android/ui/fragment/GalleryFragment.java
+++ b/app/src/main/java/com/owncloud/android/ui/fragment/GalleryFragment.java
@@ -43,6 +43,7 @@
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import androidx.recyclerview.widget.GridLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
@@ -287,7 +288,8 @@ public void onCreateOptionsMenu(Menu menu, @NonNull MenuInflater inflater) {
         MenuItem menuItem = menu.findItem(R.id.action_three_dot_icon);
 
         if (menuItem != null) {
-            viewThemeUtils.platform.colorMenuItemText(requireContext(), menuItem);
+            //NMC customization
+            menuItem.setIcon(viewThemeUtils.platform.colorDrawable(menuItem.getIcon(), ContextCompat.getColor(requireContext(), R.color.fontAppbar)));
         }
 
     }
diff --git a/app/src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java b/app/src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java
index 1d74f1d16ec1..83fd5ed61e79 100644
--- a/app/src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java
+++ b/app/src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java
@@ -757,7 +757,8 @@ public boolean onCreateActionMode(ActionMode mode, Menu menu) {
             MenuInflater inflater = getActivity().getMenuInflater();
             inflater.inflate(R.menu.custom_menu_placeholder, menu);
             final MenuItem item = menu.findItem(R.id.custom_menu_placeholder_item);
-            item.setIcon(viewThemeUtils.platform.colorDrawable(item.getIcon(), ContextCompat.getColor(requireContext(), R.color.white)));
+            //NMC customization
+            item.setIcon(viewThemeUtils.platform.colorDrawable(item.getIcon(), ContextCompat.getColor(requireContext(), R.color.fontAppbar)));
             mode.invalidate();
 
             //set actionMode color
diff --git a/app/src/main/java/com/owncloud/android/ui/preview/PreviewImageFragment.kt b/app/src/main/java/com/owncloud/android/ui/preview/PreviewImageFragment.kt
index 6c978b715f66..eef7fc89c40f 100644
--- a/app/src/main/java/com/owncloud/android/ui/preview/PreviewImageFragment.kt
+++ b/app/src/main/java/com/owncloud/android/ui/preview/PreviewImageFragment.kt
@@ -352,10 +352,11 @@ class PreviewImageFragment : FileFragment(), Injectable {
                     val item = menu.findItem(R.id.custom_menu_placeholder_item)
 
                     item.icon?.let {
+                        // NMC customization
                         item.setIcon(
                             viewThemeUtils.platform.colorDrawable(
                                 it,
-                                ContextCompat.getColor(requireContext(), R.color.white)
+                                ContextCompat.getColor(requireContext(), R.color.fontAppbar)
                             )
                         )
                     }
diff --git a/app/src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.kt b/app/src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.kt
index b06c0fea4ad5..f9520c0b07c5 100644
--- a/app/src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.kt
+++ b/app/src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.kt
@@ -34,6 +34,7 @@ import android.view.ViewGroup
 import androidx.annotation.OptIn
 import androidx.annotation.StringRes
 import androidx.appcompat.content.res.AppCompatResources
+import androidx.core.content.ContextCompat
 import androidx.core.graphics.drawable.DrawableCompat
 import androidx.core.view.MenuHost
 import androidx.core.view.MenuProvider
@@ -68,6 +69,7 @@ import com.owncloud.android.ui.dialog.ConfirmationDialogFragment
 import com.owncloud.android.ui.dialog.RemoveFilesDialogFragment
 import com.owncloud.android.ui.fragment.FileFragment
 import com.owncloud.android.utils.MimeTypeUtil
+import com.owncloud.android.utils.theme.ViewThemeUtils
 import java.lang.ref.WeakReference
 import java.util.concurrent.Executors
 import javax.inject.Inject
@@ -116,6 +118,9 @@ class PreviewMediaFragment : FileFragment(), OnTouchListener, Injectable {
     @Inject
     lateinit var backgroundJobManager: BackgroundJobManager
 
+    @Inject
+    lateinit var viewThemeUtils: ViewThemeUtils
+
     lateinit var binding: FragmentPreviewMediaBinding
     private var emptyListView: ViewGroup? = null
     private var exoPlayer: ExoPlayer? = null
@@ -366,6 +371,16 @@ class PreviewMediaFragment : FileFragment(), OnTouchListener, Injectable {
                 override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
                     menu.removeItem(R.id.action_search)
                     menuInflater.inflate(R.menu.custom_menu_placeholder, menu)
+                    // NMC customization
+                    val item = menu.findItem(R.id.custom_menu_placeholder_item)
+                    item.icon?.let {
+                        item.setIcon(
+                            viewThemeUtils.platform.colorDrawable(
+                                it,
+                                ContextCompat.getColor(requireContext(), R.color.fontAppbar)
+                            )
+                        )
+                    }
                 }
 
                 override fun onMenuItemSelected(menuItem: MenuItem): Boolean {
diff --git a/app/src/main/java/com/owncloud/android/ui/trashbin/TrashbinActivity.kt b/app/src/main/java/com/owncloud/android/ui/trashbin/TrashbinActivity.kt
index fefa493ef301..5e6e10cfa2b9 100644
--- a/app/src/main/java/com/owncloud/android/ui/trashbin/TrashbinActivity.kt
+++ b/app/src/main/java/com/owncloud/android/ui/trashbin/TrashbinActivity.kt
@@ -18,6 +18,7 @@ import android.widget.TextView
 import android.widget.Toast
 import androidx.activity.OnBackPressedCallback
 import androidx.annotation.VisibleForTesting
+import androidx.appcompat.view.ContextThemeWrapper
 import androidx.core.content.res.ResourcesCompat
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.google.android.material.snackbar.Snackbar
@@ -208,7 +209,9 @@ class TrashbinActivity :
     }
 
     override fun onOverflowIconClicked(file: TrashbinFile, view: View) {
-        val popup = PopupMenu(this, view)
+        // NMC Customization
+        val ctw = ContextThemeWrapper(this, R.style.CustomPopupTheme)
+        val popup = PopupMenu(ctw, view)
         popup.inflate(R.menu.item_trashbin)
         popup.setOnMenuItemClickListener {
             trashbinPresenter?.removeTrashbinFile(file)
diff --git a/app/src/main/java/com/owncloud/android/utils/theme/FilesSpecificViewThemeUtils.kt b/app/src/main/java/com/owncloud/android/utils/theme/FilesSpecificViewThemeUtils.kt
index 41f13b37156f..005ca5f75052 100644
--- a/app/src/main/java/com/owncloud/android/utils/theme/FilesSpecificViewThemeUtils.kt
+++ b/app/src/main/java/com/owncloud/android/utils/theme/FilesSpecificViewThemeUtils.kt
@@ -103,7 +103,8 @@ class FilesSpecificViewThemeUtils @Inject constructor(
                 .setThumbDrawable(getThumbDrawable(context))
                 .setPopupStyle {
                     PopupStyles.MD2.accept(it)
-                    it.background = FastScrollPopupBackground(context, scheme.primary)
+                    //NMC customisation
+                    it.background = FastScrollPopupBackground(context, context.resources.getColor(R.color.primary, null))
                 }
         }
     }
@@ -115,7 +116,7 @@ class FilesSpecificViewThemeUtils @Inject constructor(
                 me.zhanghai.android.fastscroll.R.drawable.afs_md2_thumb,
                 null
             )
-        return androidViewThemeUtils.tintPrimaryDrawable(context, thumbDrawable)!!
+        return androidViewThemeUtils.colorDrawable(thumbDrawable!!, context.resources.getColor(R.color.primary, null))
     }
 
     private fun getHomeAsUpIcon(isMenu: Boolean): Int {
diff --git a/app/src/main/res/values-night/colors.xml b/app/src/main/res/values-night/colors.xml
index 1ce3f0da4f73..2f79b79712ed 100644
--- a/app/src/main/res/values-night/colors.xml
+++ b/app/src/main/res/values-night/colors.xml
@@ -36,4 +36,68 @@
     <!-- App bar -->
     <color name="appbar">#1E1E1E</color>
     <color name="fontAppbar">@android:color/white</color>
+
+    <!-- NMC Colors -->
+    <color name="icon_color">#FFFFFF</color>
+    <color name="sort_text_color">@color/grey_30</color>
+    <color name="list_icon_color">@color/grey_30</color>
+    <color name="warning_icon_color">#CCCCCC</color>
+    <color name="divider_color">@color/grey_70</color>
+    <color name="spinner_bg_color">@color/grey_80</color>
+    <color name="refresh_layout_bg_color">#2D2D2D</color>
+    <color name="primary_button_disabled_color">@color/grey_70</color>
+    <color name="toolbar_divider_color">@color/grey_70</color>
+
+    <!-- Snackbar Colors -->
+    <color name="snackbar_bg_color">@color/grey_80</color>
+    <color name="snackbar_txt_color">@color/grey_0</color>
+
+    <!-- Alert Dialog Colors -->
+    <color name="alert_bg_color">@color/grey_80</color>
+    <color name="alert_txt_color">@color/grey_0</color>
+
+    <!--  NavigationView colors  -->
+    <color name="nav_selected_bg_color">@color/grey_60</color>
+    <color name="nav_txt_unselected_color">@color/grey_0</color>
+    <color name="nav_txt_selected_color">@color/grey_0</color>
+    <color name="nav_icon_unselected_color">@color/grey_30</color>
+    <color name="nav_icon_selected_color">#FFFFFF</color>
+    <color name="nav_divider_color">@color/grey_30</color>
+    <color name="nav_bg_color">@color/grey_80</color>
+    <color name="drawer_quota_txt_color">#FFFFFF</color>
+
+    <!-- Bottom Sheet Colors -->
+    <color name="bottom_sheet_bg_color">@color/grey_80</color>
+    <color name="bottom_sheet_icon_color">@color/grey_30</color>
+    <color name="bottom_sheet_txt_color">@color/grey_0</color>
+
+    <!-- Popup Menu Colors -->
+    <color name="popup_menu_bg">@color/grey_80</color>
+    <color name="popup_menu_txt_color">@color/grey_0</color>
+    <color name="overflow_bg_color">@color/grey_80</color>
+
+    <!-- Switch Compat Colors -->
+    <color name="switch_thumb_disabled">@color/grey_70</color>
+    <color name="switch_track_disabled">@color/grey_60</color>
+
+    <!-- Checkbox Colors -->
+    <color name="checkbox_checked_disabled">@color/grey_70</color>
+    <color name="checkbox_unchecked_disabled">@color/grey_70</color>
+
+    <!-- Share Colors -->
+    <color name="share_title_txt_color">#FFFFFF</color>
+    <color name="share_subtitle_txt_color">@color/grey_30</color>
+    <color name="share_info_txt_color">@color/grey_0</color>
+    <color name="share_search_border_color">@color/grey_0</color>
+    <color name="share_btn_txt_color">@color/grey_0</color>
+    <color name="share_list_item_txt_color">@color/grey_0</color>
+    <color name="share_disabled_txt_color">@color/grey_60</color>
+    <color name="share_txt_color">@color/grey_0</color>
+    <color name="share_et_divider">#FFFFFF</color>
+
+    <!-- Scan Colors -->
+    <color name="scan_doc_bg_color">#121212</color>
+    <color name="scan_text_color">@color/grey_0</color>
+    <color name="scan_edit_bottom_color">@color/grey_80</color>
+    <color name="scan_count_bg_color">@color/grey_80</color>
 </resources>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 89ed00a08bf2..46992e0a67c6 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -75,4 +75,93 @@
     <color name="appbar">@android:color/white</color>
     <color name="fontAppbar">#666666</color>
     <color name="fontSecondaryAppbar">#A5A5A5</color>
+
+    <!--  NMC Colors  -->
+    <color name="icon_color">#191919</color>
+    <color name="sort_text_color">@color/primary</color>
+    <color name="list_icon_color">#191919</color>
+    <color name="warning_icon_color">#191919</color>
+    <color name="divider_color">@color/grey_30</color>
+    <color name="spinner_bg_color">@android:color/white</color>
+    <color name="refresh_layout_bg_color">#FFFFFF</color>
+    <color name="primary_button_disabled_color">@color/grey_0</color>
+    <color name="toolbar_divider_color">#CCCCCC</color>
+    <color name="et_highlight_color">#77c4ff</color>
+    <color name="white_trans_70">#B3FFFFFF</color>
+    <color name="progress_bar_background">@color/grey_10</color>
+
+    <!-- Grey Colors -->
+    <color name="dark_grey">#101010</color>
+    <color name="grey_0">#F2F2F2</color>
+    <color name="grey_10">#E5E5E5</color>
+    <color name="grey_30">#B2B2B2</color>
+    <color name="grey_60">#666666</color>
+    <color name="grey_70">#4C4C4C</color>
+    <color name="grey_80">#333333</color>
+
+    <!-- Snackbar Colors  -->
+    <color name="snackbar_bg_color">@color/design_snackbar_background_color</color>
+    <color name="snackbar_txt_color">@color/white</color>
+
+    <!-- Alert Dialog Colors -->
+    <color name="alert_bg_color">#FFFFFF</color>
+    <color name="alert_txt_color">#191919</color>
+
+    <!--  NavigationView colors  -->
+    <color name="nav_selected_bg_color">@color/grey_0</color>
+    <color name="nav_txt_unselected_color">#191919</color>
+    <color name="nav_txt_selected_color">@color/primary</color>
+    <color name="nav_icon_unselected_color">#191919</color>
+    <color name="nav_icon_selected_color">@color/primary</color>
+    <color name="nav_divider_color">@color/grey_30</color>
+    <color name="nav_bg_color">@color/white</color>
+    <color name="drawer_quota_txt_color">#191919</color>
+
+    <!-- Bottom Sheet Colors -->
+    <color name="bottom_sheet_bg_color">#FFFFFF</color>
+    <color name="bottom_sheet_icon_color">#191919</color>
+    <color name="bottom_sheet_txt_color">#191919</color>
+
+    <!-- Popup Menu Colors -->
+    <color name="popup_menu_bg">#FFFFFF</color>
+    <color name="popup_menu_txt_color">#191919</color>
+    <color name="overflow_bg_color">#FFFFFF</color>
+
+    <!-- Switch Compat Colors -->
+    <color name="switch_thumb_checked_enabled">@color/primary</color>
+    <color name="switch_track_checked_enabled">#F399C7</color>
+    <color name="switch_thumb_unchecked_enabled">#FFFFFF</color>
+    <color name="switch_track_unchecked_enabled">@color/grey_30</color>
+    <color name="switch_thumb_disabled">@color/grey_10</color>
+    <color name="switch_track_disabled">@color/grey_0</color>
+
+    <!-- Checkbox Colors -->
+    <color name="checkbox_checked_enabled">@color/primary</color>
+    <color name="checkbox_unchecked_enabled">@color/grey_30</color>
+    <color name="checkbox_checked_disabled">@color/grey_30</color>
+    <color name="checkbox_unchecked_disabled">#CCCCCC</color>
+
+    <!-- Share Colors -->
+    <color name="share_title_txt_color">#191919</color>
+    <color name="share_subtitle_txt_color">@color/grey_30</color>
+    <color name="share_info_txt_color">#191919</color>
+    <color name="share_search_border_color">#191919</color>
+    <color name="share_btn_txt_color">#191919</color>
+    <color name="share_list_item_txt_color">#191919</color>
+    <color name="share_disabled_txt_color">@color/grey_30</color>
+    <color name="share_txt_color">#191919</color>
+    <color name="share_et_divider">#000000</color>
+    <color name="share_warning_txt_color">#191919</color>
+    <color name="sharing_warning_bg_color">#F6E5EB</color>
+    <color name="sharing_warning_border_color">#C16F81</color>
+    <color name="share_color">#0D39DF</color>
+    <color name="shared_with_me_color">#0099ff</color>
+
+    <!--  Scan Colors  -->
+    <color name="scan_doc_bg_color">@color/grey_0</color>
+    <color name="scan_text_color">#191919</color>
+    <color name="scan_edit_bottom_color">@color/grey_0</color>
+    <color name="scan_count_bg_color">@color/grey_30</color>
+    <color name="neptune">#77b6bb</color>
+    <color name="neptune_50">#5077b6bb</color>
 </resources>
diff --git a/app/src/main/res/values/nmc_popup_styles.xml b/app/src/main/res/values/nmc_popup_styles.xml
new file mode 100644
index 000000000000..145a9c4ea15b
--- /dev/null
+++ b/app/src/main/res/values/nmc_popup_styles.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="CustomPopupTheme">
+        <!-- if using android.widget.PopupMenu -->
+        <item name="android:popupMenuStyle">@style/PopupMenu</item>
+        <!-- if using android.support.v7.widget.PopupMenu -->
+        <item name="popupMenuStyle">@style/PopupMenu</item>
+    </style>
+
+    <style name="PopupMenu" parent="ThemeOverlay.AppTheme.PopupMenu">
+        <item name="android:popupBackground">@color/popup_menu_bg</item>
+        <item name="android:textColor">@color/popup_menu_txt_color</item>
+        <item name="android:popupElevation">20dp</item>
+    </style>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 13c9a15b63a6..84773e063c2e 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -360,9 +360,9 @@
 
     <style name="ThemeOverlay.AppTheme.PopupMenu" parent="ThemeOverlay.Material3.Dark">
         <!-- popup menu background - NEVER "android:background" !!! in themes -->
-        <item name="android:colorBackground">@color/bg_default</item>
+        <item name="android:colorBackground">@color/popup_menu_bg</item>
         <!-- popup menu item text color -->
-        <item name="android:textColorPrimary">@color/text_color</item>
+        <item name="android:textColorPrimary">@color/popup_menu_txt_color</item>
     </style>
 
     <style name="Nextcloud.Widget.PopupMenu" parent="@style/Widget.Material3.PopupMenu">
@@ -375,7 +375,7 @@
     </style>
 
     <style name="OverflowMenuStyle" parent="Widget.Material3.PopupMenu.Overflow">
-        <item name="android:popupBackground">@color/bg_default</item>
+        <item name="android:popupBackground">@color/overflow_bg_color</item>
     </style>
 
     <style name="MaterialListItemSingleLine">