diff --git a/ModernWpf.SampleApp/App.xaml b/ModernWpf.SampleApp/App.xaml
index c845443c..4d7dc5c5 100644
--- a/ModernWpf.SampleApp/App.xaml
+++ b/ModernWpf.SampleApp/App.xaml
@@ -50,42 +50,6 @@
                             <SolidColorBrush x:Key="CustomThemeBrush" Color="Blue" />
                         </ResourceDictionary>
                     </ui:ThemeResources.ThemeDictionaries>
-                    <!--<ResourceDictionary.MergedDictionaries>
-                        <ui:ThemeDictionary Key="Light">
-                            <ResourceDictionary.MergedDictionaries>
-                                <ResourceDictionary>
-                                    <ResourceDictionary.MergedDictionaries>
-                                        <ui:DefaultThemeResources Key="Light" />
-                                    </ResourceDictionary.MergedDictionaries>
-                                    <SolidColorBrush x:Key="RegionBrush" Color="{StaticResource SystemAltHighColor}" />
-                                </ResourceDictionary>
-                                <presets:PresetResources TargetTheme="Light" />
-                            </ResourceDictionary.MergedDictionaries>
-                            <SolidColorBrush x:Key="AppBackgroundBrush" Color="#FFF1F1F1" />
-                            <SolidColorBrush x:Key="AppContentBackgroundBrush" Color="{StaticResource SystemAltHighColor}" />
-                            <SolidColorBrush x:Key="CustomThemeBrush" Color="Red" />
-                        </ui:ThemeDictionary>
-                        <ui:ThemeDictionary Key="Dark">
-                            <ResourceDictionary.MergedDictionaries>
-                                <ResourceDictionary>
-                                    <ResourceDictionary.MergedDictionaries>
-                                        <ui:DefaultThemeResources Key="Dark" />
-                                    </ResourceDictionary.MergedDictionaries>
-                                    <SolidColorBrush x:Key="RegionBrush" Color="{StaticResource SystemAltHighColor}" />
-                                </ResourceDictionary>
-                                <presets:PresetResources TargetTheme="Dark" />
-                            </ResourceDictionary.MergedDictionaries>
-                            <SolidColorBrush x:Key="AppBackgroundBrush" Color="#FF232323" />
-                            <SolidColorBrush x:Key="AppContentBackgroundBrush" Color="#FF282828" />
-                            <SolidColorBrush x:Key="CustomThemeBrush" Color="Yellow" />
-                        </ui:ThemeDictionary>
-                        <ui:ThemeDictionary Key="HighContrast">
-                            <SolidColorBrush x:Key="AppBackgroundBrush" Color="{DynamicResource {x:Static SystemColors.WindowColorKey}}" />
-                            <SolidColorBrush x:Key="AppContentBackgroundBrush" Color="{DynamicResource {x:Static SystemColors.WindowColorKey}}" />
-                            <SolidColorBrush x:Key="RegionBrush" Color="Transparent" />
-                            <SolidColorBrush x:Key="CustomThemeBrush" Color="Blue" />
-                        </ui:ThemeDictionary>
-                    </ResourceDictionary.MergedDictionaries>-->
                 </ui:ThemeResources>
                 <ui:XamlControlsResources />
             </ResourceDictionary.MergedDictionaries>
diff --git a/ModernWpf.SampleApp/MainPage.xaml b/ModernWpf.SampleApp/MainPage.xaml
index f60966cf..86fa7442 100644
--- a/ModernWpf.SampleApp/MainPage.xaml
+++ b/ModernWpf.SampleApp/MainPage.xaml
@@ -62,6 +62,16 @@
                 <ui:RadioMenuItem Header="Lavender" />
                 <ui:RadioMenuItem Header="Nighttime" />
             </MenuItem>
+            <MenuItem
+                Header="Sizing"
+                MenuItem.Click="SizingMenuItem_Click">
+                <ui:RadioMenuItem
+                    Header="Standard"
+                    IsChecked="True" />
+                <ui:RadioMenuItem
+                    Header="Compact"
+                    Tag="Compact" />
+            </MenuItem>
         </Menu>
 
         <ListBox
diff --git a/ModernWpf.SampleApp/MainPage.xaml.cs b/ModernWpf.SampleApp/MainPage.xaml.cs
index 80efcd34..311f0c92 100644
--- a/ModernWpf.SampleApp/MainPage.xaml.cs
+++ b/ModernWpf.SampleApp/MainPage.xaml.cs
@@ -111,6 +111,20 @@ private void PresetMenuItem_Click(object sender, RoutedEventArgs e)
                 PresetManager.Current.CurrentPreset = (string)menuItem.Header;
             }
         }
+
+        private void SizingMenuItem_Click(object sender, RoutedEventArgs e)
+        {
+            if (e.OriginalSource is MenuItem menuItem)
+            {
+                bool compact = menuItem.Tag as string == "Compact";
+
+                var xcr = Application.Current.Resources.MergedDictionaries.OfType<XamlControlsResources>().FirstOrDefault();
+                if (xcr != null)
+                {
+                    xcr.UseCompactResources = compact;
+                }
+            }
+        }
     }
 
     public class ControlPagesData : List<ControlPageInfo>
diff --git a/ModernWpf/Controls/XamlControlsResources.cs b/ModernWpf/Controls/XamlControlsResources.cs
index e2cd9486..324b7ddb 100644
--- a/ModernWpf/Controls/XamlControlsResources.cs
+++ b/ModernWpf/Controls/XamlControlsResources.cs
@@ -12,7 +12,42 @@ public class XamlControlsResources : ResourceDictionary
         /// </summary>
         public XamlControlsResources()
         {
-            Source = PackUriHelper.GetAbsoluteUri("XamlControlsResources.xaml");
+            MergedDictionaries.Add(new ResourceDictionary { Source = PackUriHelper.GetAbsoluteUri("XamlControlsResources.xaml") });
         }
+
+        public bool UseCompactResources
+        {
+            get => _useCompactResources;
+            set
+            {
+                if (_useCompactResources != value)
+                {
+                    _useCompactResources = value;
+                    if (_useCompactResources)
+                    {
+                        MergedDictionaries.Add(CompactResources);
+                    }
+                    else
+                    {
+                        MergedDictionaries.Remove(CompactResources);
+                    };
+                }
+            }
+        }
+
+        internal static ResourceDictionary CompactResources
+        {
+            get
+            {
+                if (_compactResources == null)
+                {
+                    _compactResources = new ResourceDictionary { Source = PackUriHelper.GetAbsoluteUri("DensityStyles/Compact.xaml") };
+                }
+                return _compactResources;
+            }
+        }
+
+        private static ResourceDictionary _compactResources;
+        private bool _useCompactResources;
     }
 }
diff --git a/ModernWpf/Styles/ListView.xaml b/ModernWpf/Styles/ListView.xaml
index a275d803..1f615586 100644
--- a/ModernWpf/Styles/ListView.xaml
+++ b/ModernWpf/Styles/ListView.xaml
@@ -6,6 +6,7 @@
     xmlns:local="clr-namespace:ModernWpf.Controls"
     xmlns:primitives="clr-namespace:ModernWpf.Controls.Primitives">
 
+    <sys:Double x:Key="ListViewItemMinHeight">40</sys:Double>
     <sys:Double x:Key="GridViewColumnHeaderMinHeight">33</sys:Double>
     <sys:Double x:Key="GridViewItemContainerMinHeight">32</sys:Double>
 
diff --git a/ModernWpf/Styles/TreeView.xaml b/ModernWpf/Styles/TreeView.xaml
index 5b938e09..2f53471e 100644
--- a/ModernWpf/Styles/TreeView.xaml
+++ b/ModernWpf/Styles/TreeView.xaml
@@ -2,9 +2,11 @@
 <ResourceDictionary
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:local="clr-namespace:ModernWpf.Controls"
+    xmlns:sys="clr-namespace:System;assembly=mscorlib"
     xmlns:primitives="clr-namespace:ModernWpf.Controls.Primitives">
 
+    <sys:Double x:Key="TreeViewItemMinHeight">32</sys:Double>
+
     <Style x:Key="ExpandCollapseToggleStyle" TargetType="{x:Type ToggleButton}">
         <Setter Property="OverridesDefaultStyle" Value="True" />
         <Setter Property="Focusable" Value="False" />
diff --git a/ModernWpf/ThemeResources/Dark.xaml b/ModernWpf/ThemeResources/Dark.xaml
index f29fc76a..d147eefd 100644
--- a/ModernWpf/ThemeResources/Dark.xaml
+++ b/ModernWpf/ThemeResources/Dark.xaml
@@ -8,8 +8,6 @@
 
     <m:StaticResource x:Key="ContentControlThemeFontFamily" ResourceKey="{x:Static SystemFonts.MessageFontFamilyKey}" />
     <FontFamily x:Key="SymbolThemeFontFamily">Segoe MDL2 Assets, /ModernWpf;component/Assets/#Segoe MDL2 Assets</FontFamily>
-    <sys:Double x:Key="ControlContentThemeFontSize">14</sys:Double>
-    <sys:Double x:Key="ContentControlFontSize">14</sys:Double>
     <CornerRadius x:Key="ControlCornerRadius">2,2,2,2</CornerRadius>
     <CornerRadius x:Key="OverlayCornerRadius">4,4,4,4</CornerRadius>
 
@@ -510,7 +508,6 @@
     <sys:Double x:Key="ListViewItemReorderHintThemeOffset">10.0</sys:Double>
     <sys:Double x:Key="ListViewItemSelectedBorderThemeThickness">4</sys:Double>
     <sys:Double x:Key="ListViewItemMinWidth">88</sys:Double>
-    <sys:Double x:Key="ListViewItemMinHeight">40</sys:Double>
     <m:StaticResource x:Key="ListViewItemBackground" ResourceKey="SystemControlTransparentBrush" />
     <m:StaticResource x:Key="ListViewItemBackgroundPointerOver" ResourceKey="SystemControlHighlightListLowBrush" />
     <m:StaticResource x:Key="ListViewItemBackgroundPressed" ResourceKey="SystemControlHighlightListMediumBrush" />
@@ -891,14 +888,11 @@
     <m:StaticResource x:Key="TreeViewItemCheckBoxBorderSelected" ResourceKey="SystemControlForegroundBaseMediumHighBrush" />
     <m:StaticResource x:Key="TreeViewItemCheckGlyphSelected" ResourceKey="SystemControlForegroundBaseMediumHighBrush" />
     <Thickness x:Key="TreeViewItemBorderThemeThickness">1</Thickness>
-    <sys:Double x:Key="TreeViewItemMinHeight">32</sys:Double>
 
     <sys:Double x:Key="TextControlThemeMinWidth">64</sys:Double>
-    <sys:Double x:Key="TextControlThemeMinHeight">32</sys:Double>
     <Thickness x:Key="TextControlBorderThemeThickness">1</Thickness>
     <Thickness x:Key="TextControlBorderThemeThicknessFocused">2</Thickness>
     <Thickness x:Key="TextControlMarginThemeThickness">0,9.5,0,9.5</Thickness>
-    <Thickness x:Key="TextControlThemePadding">10,6,6,5</Thickness>
     <Thickness x:Key="HelperButtonThemePadding">0,0,-2,0</Thickness>
     <m:StaticResource x:Key="TextControlForeground" ResourceKey="SystemControlForegroundBaseHighBrush" />
     <m:StaticResource x:Key="TextControlForegroundPointerOver" ResourceKey="SystemControlForegroundBaseHighBrush" />
diff --git a/ModernWpf/ThemeResources/HighContrast.xaml b/ModernWpf/ThemeResources/HighContrast.xaml
index e37d86a0..fcd0052b 100644
--- a/ModernWpf/ThemeResources/HighContrast.xaml
+++ b/ModernWpf/ThemeResources/HighContrast.xaml
@@ -8,8 +8,6 @@
 
     <m:StaticResource x:Key="ContentControlThemeFontFamily" ResourceKey="{x:Static SystemFonts.MessageFontFamilyKey}" />
     <FontFamily x:Key="SymbolThemeFontFamily">Segoe MDL2 Assets, /ModernWpf;component/Assets/#Segoe MDL2 Assets</FontFamily>
-    <sys:Double x:Key="ControlContentThemeFontSize">14</sys:Double>
-    <sys:Double x:Key="ContentControlFontSize">14</sys:Double>
     <CornerRadius x:Key="ControlCornerRadius">2,2,2,2</CornerRadius>
     <CornerRadius x:Key="OverlayCornerRadius">4,4,4,4</CornerRadius>
 
@@ -510,7 +508,6 @@
     <sys:Double x:Key="ListViewItemReorderHintThemeOffset">10.0</sys:Double>
     <sys:Double x:Key="ListViewItemSelectedBorderThemeThickness">4</sys:Double>
     <sys:Double x:Key="ListViewItemMinWidth">88</sys:Double>
-    <sys:Double x:Key="ListViewItemMinHeight">40</sys:Double>
     <m:StaticResource x:Key="ListViewItemBackground" ResourceKey="SystemControlTransparentBrush" />
     <m:StaticResource x:Key="ListViewItemBackgroundPointerOver" ResourceKey="SystemControlHighlightListLowBrush" />
     <m:StaticResource x:Key="ListViewItemBackgroundPressed" ResourceKey="SystemControlHighlightListMediumBrush" />
@@ -891,14 +888,11 @@
     <SolidColorBrush x:Key="TreeViewItemCheckBoxBorderSelected" Color="{DynamicResource {x:Static SystemColors.ControlTextColorKey}}" />
     <SolidColorBrush x:Key="TreeViewItemCheckGlyphSelected" Color="{DynamicResource {x:Static SystemColors.WindowTextColorKey}}" />
     <Thickness x:Key="TreeViewItemBorderThemeThickness">1</Thickness>
-    <sys:Double x:Key="TreeViewItemMinHeight">32</sys:Double>
 
     <sys:Double x:Key="TextControlThemeMinWidth">64</sys:Double>
-    <sys:Double x:Key="TextControlThemeMinHeight">32</sys:Double>
     <Thickness x:Key="TextControlBorderThemeThickness">1</Thickness>
     <Thickness x:Key="TextControlBorderThemeThicknessFocused">2</Thickness>
     <Thickness x:Key="TextControlMarginThemeThickness">0,9.5,0,9.5</Thickness>
-    <Thickness x:Key="TextControlThemePadding">10,6,6,5</Thickness>
     <Thickness x:Key="HelperButtonThemePadding">0,0,-2,0</Thickness>
     <m:StaticResource x:Key="TextControlForeground" ResourceKey="SystemControlForegroundBaseHighBrush" />
     <m:StaticResource x:Key="TextControlForegroundPointerOver" ResourceKey="SystemControlForegroundBaseHighBrush" />
diff --git a/ModernWpf/ThemeResources/Light.xaml b/ModernWpf/ThemeResources/Light.xaml
index 85c4db24..c1a4ce0e 100644
--- a/ModernWpf/ThemeResources/Light.xaml
+++ b/ModernWpf/ThemeResources/Light.xaml
@@ -8,8 +8,6 @@
 
     <m:StaticResource x:Key="ContentControlThemeFontFamily" ResourceKey="{x:Static SystemFonts.MessageFontFamilyKey}" />
     <FontFamily x:Key="SymbolThemeFontFamily">Segoe MDL2 Assets, /ModernWpf;component/Assets/#Segoe MDL2 Assets</FontFamily>
-    <sys:Double x:Key="ControlContentThemeFontSize">14</sys:Double>
-    <sys:Double x:Key="ContentControlFontSize">14</sys:Double>
     <CornerRadius x:Key="ControlCornerRadius">2,2,2,2</CornerRadius>
     <CornerRadius x:Key="OverlayCornerRadius">4,4,4,4</CornerRadius>
 
@@ -510,7 +508,6 @@
     <sys:Double x:Key="ListViewItemReorderHintThemeOffset">10.0</sys:Double>
     <sys:Double x:Key="ListViewItemSelectedBorderThemeThickness">4</sys:Double>
     <sys:Double x:Key="ListViewItemMinWidth">88</sys:Double>
-    <sys:Double x:Key="ListViewItemMinHeight">40</sys:Double>
     <m:StaticResource x:Key="ListViewItemBackground" ResourceKey="SystemControlTransparentBrush" />
     <m:StaticResource x:Key="ListViewItemBackgroundPointerOver" ResourceKey="SystemControlHighlightListLowBrush" />
     <m:StaticResource x:Key="ListViewItemBackgroundPressed" ResourceKey="SystemControlHighlightListMediumBrush" />
@@ -891,14 +888,11 @@
     <m:StaticResource x:Key="TreeViewItemCheckBoxBorderSelected" ResourceKey="SystemControlForegroundBaseMediumHighBrush" />
     <m:StaticResource x:Key="TreeViewItemCheckGlyphSelected" ResourceKey="SystemControlForegroundBaseMediumHighBrush" />
     <Thickness x:Key="TreeViewItemBorderThemeThickness">1</Thickness>
-    <sys:Double x:Key="TreeViewItemMinHeight">32</sys:Double>
 
     <sys:Double x:Key="TextControlThemeMinWidth">64</sys:Double>
-    <sys:Double x:Key="TextControlThemeMinHeight">32</sys:Double>
     <Thickness x:Key="TextControlBorderThemeThickness">1</Thickness>
     <Thickness x:Key="TextControlBorderThemeThicknessFocused">2</Thickness>
     <Thickness x:Key="TextControlMarginThemeThickness">0,9.5,0,9.5</Thickness>
-    <Thickness x:Key="TextControlThemePadding">10,6,6,5</Thickness>
     <Thickness x:Key="HelperButtonThemePadding">0,0,-2,0</Thickness>
     <m:StaticResource x:Key="TextControlForeground" ResourceKey="SystemControlForegroundBaseHighBrush" />
     <m:StaticResource x:Key="TextControlForegroundPointerOver" ResourceKey="SystemControlForegroundBaseHighBrush" />
diff --git a/ModernWpf/XamlControlsResources.xaml b/ModernWpf/XamlControlsResources.xaml
index d6c5598e..0644d7be 100644
--- a/ModernWpf/XamlControlsResources.xaml
+++ b/ModernWpf/XamlControlsResources.xaml
@@ -1,7 +1,8 @@
 <ResourceDictionary
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:primitives="clr-namespace:ModernWpf.Controls.Primitives">
+    xmlns:primitives="clr-namespace:ModernWpf.Controls.Primitives"
+    xmlns:sys="clr-namespace:System;assembly=mscorlib">
 
     <ResourceDictionary.MergedDictionaries>
         <ResourceDictionary Source="Styles/Calendar.xaml" />
@@ -33,6 +34,11 @@
         <ResourceDictionary Source="Styles/Window.xaml" />
     </ResourceDictionary.MergedDictionaries>
 
+    <sys:Double x:Key="ControlContentThemeFontSize">14</sys:Double>
+    <sys:Double x:Key="ContentControlFontSize">14</sys:Double>
+    <sys:Double x:Key="TextControlThemeMinHeight">32</sys:Double>
+    <Thickness x:Key="TextControlThemePadding">10,6,6,5</Thickness>
+
     <Style x:Key="EmptyFocusVisual">
         <Setter Property="primitives:FocusVisualHelper.IsSystemFocusVisual" Value="True" />
     </Style>