diff --git a/app/src/main/java/com/owncloud/android/ui/adapter/SyncedFolderAdapter.java b/app/src/main/java/com/owncloud/android/ui/adapter/SyncedFolderAdapter.java
index 2f316929809b..a21044c551f9 100644
--- a/app/src/main/java/com/owncloud/android/ui/adapter/SyncedFolderAdapter.java
+++ b/app/src/main/java/com/owncloud/android/ui/adapter/SyncedFolderAdapter.java
@@ -50,6 +50,7 @@
 import java.util.concurrent.Executors;
 
 import androidx.annotation.NonNull;
+import androidx.appcompat.view.ContextThemeWrapper;
 
 /**
  * Adapter to display all auto-synced folders and/or instant upload media folders.
@@ -298,7 +299,9 @@ public void onBindHeaderViewHolder(SectionedViewHolder commonHolder, final int s
     }
 
     private void onOverflowIconClicked(int section, SyncedFolderDisplayItem item, View view) {
-        PopupMenu popup = new PopupMenu(context, view);
+        //NMC Customisation
+        ContextThemeWrapper ctw = new ContextThemeWrapper(context, R.style.CustomPopupTheme);
+        PopupMenu popup = new PopupMenu(ctw, view);
         popup.inflate(R.menu.synced_folders_adapter);
         popup.setOnMenuItemClickListener(i -> optionsItemSelected(i, section, item));
         popup.getMenu()
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 1b1763ce01e8..a5942b93114a 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
@@ -75,6 +75,7 @@
 import java.util.Arrays;
 
 import androidx.annotation.NonNull;
+import androidx.appcompat.view.ContextThemeWrapper;
 
 /**
  * This Adapter populates a ListView with following types of uploads: pending, active, completed. Filtering possible.
@@ -540,7 +541,9 @@ 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 00b5b00adb62..fa9fe79e3d9e 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
@@ -57,6 +57,7 @@
 
 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;
@@ -290,7 +291,8 @@ 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 11594d5749b7..04b3f7f8ce9e 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
@@ -746,7 +746,8 @@ 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.java b/app/src/main/java/com/owncloud/android/ui/preview/PreviewImageFragment.java
index 7c1727ba22ee..b874fcd024c4 100644
--- a/app/src/main/java/com/owncloud/android/ui/preview/PreviewImageFragment.java
+++ b/app/src/main/java/com/owncloud/android/ui/preview/PreviewImageFragment.java
@@ -377,7 +377,8 @@ public void onCreateOptionsMenu(@NonNull Menu menu, @NonNull MenuInflater inflat
         super.onCreateOptionsMenu(menu, inflater);
         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)));
     }
 
     @Override
diff --git a/app/src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.java b/app/src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.java
index 04a74d310f0a..e3d3e3f8e9dd 100644
--- a/app/src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.java
+++ b/app/src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.java
@@ -78,6 +78,7 @@
 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.ArrayList;
@@ -92,6 +93,7 @@
 import androidx.appcompat.content.res.AppCompatResources;
 import androidx.appcompat.widget.AppCompatImageButton;
 import androidx.core.graphics.drawable.DrawableCompat;
+import androidx.core.content.ContextCompat;
 import androidx.drawerlayout.widget.DrawerLayout;
 import androidx.fragment.app.FragmentActivity;
 import androidx.fragment.app.FragmentManager;
@@ -138,6 +140,7 @@ public class PreviewMediaFragment extends FileFragment implements OnTouchListene
     @Inject ClientFactory clientFactory;
     @Inject UserAccountManager accountManager;
     @Inject BackgroundJobManager backgroundJobManager;
+    @Inject ViewThemeUtils viewThemeUtils;
     FragmentPreviewMediaBinding binding;
     private ViewGroup emptyListView;
     private ExoPlayer exoPlayer;
@@ -430,6 +433,9 @@ public void onCreateOptionsMenu(@NonNull Menu menu, @NonNull MenuInflater inflat
         super.onCreateOptionsMenu(menu, inflater);
         menu.removeItem(R.id.action_search);
         inflater.inflate(R.menu.custom_menu_placeholder, menu);
+        //NMC customization
+        final MenuItem item = menu.findItem(R.id.custom_menu_placeholder_item);
+        item.setIcon(viewThemeUtils.platform.colorDrawable(item.getIcon(), ContextCompat.getColor(requireContext(), R.color.fontAppbar)));
     }
 
     @Override
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 ff99ef902406..ef06b93ae542 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
@@ -33,6 +33,7 @@ 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
@@ -221,7 +222,9 @@ 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 2d728aca05f3..be83cb2b3808 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
@@ -118,7 +118,8 @@ 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))
                 }
         }
     }
@@ -132,7 +133,7 @@ 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 08bf64d552ad..e926fdcc432f 100644
--- a/app/src/main/res/values-night/colors.xml
+++ b/app/src/main/res/values-night/colors.xml
@@ -48,4 +48,68 @@
     <!-- 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 58fcdecf1fc2..b05b582157a7 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -82,4 +82,93 @@
     <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/styles.xml b/app/src/main/res/values/styles.xml
index cc4503ab5f59..22ce3735a07e 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -387,9 +387,9 @@
 
     <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">
@@ -402,7 +402,7 @@
     </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">
@@ -449,6 +449,20 @@
         <item name="hwSecuritySurfaceColor">@color/primary</item>
     </style>
 
+    <!-- NMC Customization -->
+    <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>
+
     <style name="Nextcloud.Material.TextButton" parent="Widget.Material3.Button.TextButton.Icon">
         <item name="android:typeface">sans</item>
         <item name="android:textStyle">bold</item>