From 3c40b950dfa117574834740784ad2cb5530af441 Mon Sep 17 00:00:00 2001
From: 0x5BFA <62196528+0x5bfa@users.noreply.github.com>
Date: Thu, 7 Aug 2025 21:32:19 +0900
Subject: [PATCH 1/2] Init

---
 .../src/GridSplitter/GridSplitter.Events.cs   |  4 ++--
 components/Sizers/src/SizerBase.cs            |  2 +-
 components/Sizers/src/SizerBase.xaml          | 23 ++++++++++++++++++-
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/components/Sizers/src/GridSplitter/GridSplitter.Events.cs b/components/Sizers/src/GridSplitter/GridSplitter.Events.cs
index ba40e784..999be72f 100644
--- a/components/Sizers/src/GridSplitter/GridSplitter.Events.cs
+++ b/components/Sizers/src/GridSplitter/GridSplitter.Events.cs
@@ -50,7 +50,7 @@ protected override bool OnDragVertical(double verticalChange)
         var currentChange = _currentSize + verticalChange;
         var siblingChange = _siblingSize + (verticalChange * -1); // sibling moves opposite
 
-        // Would changing the columnn sizes violate the constraints?
+        // Would changing the column sizes violate the constraints?
         if (!IsValidRowHeight(CurrentRow, currentChange) || !IsValidRowHeight(SiblingRow, siblingChange))
         {
             return false;
@@ -125,7 +125,7 @@ protected override bool OnDragHorizontal(double horizontalChange)
         var currentChange = _currentSize + horizontalChange;
         var siblingChange = _siblingSize + (horizontalChange * -1); // sibling moves opposite
 
-        // Would changing the columnn sizes violate the constraints?
+        // Would changing the column sizes violate the constraints?
         if (!IsValidColumnWidth(CurrentColumn, currentChange) || !IsValidColumnWidth(SiblingColumn, siblingChange))
         {
             return false;
diff --git a/components/Sizers/src/SizerBase.cs b/components/Sizers/src/SizerBase.cs
index 0cf9b01c..b1f62171 100644
--- a/components/Sizers/src/SizerBase.cs
+++ b/components/Sizers/src/SizerBase.cs
@@ -139,7 +139,7 @@ protected override void OnApplyTemplate()
         // Ensure we have the proper cursor value setup, as we can only set now for WinUI 3
         OnOrientationPropertyChanged(this, null!);
 
-        // Ensure we set the Thumb visiblity
+        // Ensure we set the Thumb visibility
         OnIsThumbVisiblePropertyChanged(this, null!);
     }
 
diff --git a/components/Sizers/src/SizerBase.xaml b/components/Sizers/src/SizerBase.xaml
index fc306c7e..4ba6482e 100644
--- a/components/Sizers/src/SizerBase.xaml
+++ b/components/Sizers/src/SizerBase.xaml
@@ -41,12 +41,21 @@
                             ResourceKey="SystemColorButtonTextColorBrush" />
         </ResourceDictionary>
     </ResourceDictionary.ThemeDictionaries>
+
     <x:Double x:Key="SizerBaseThumbHeight">24</x:Double>
     <x:Double x:Key="SizerBaseThumbWidth">4</x:Double>
     <x:Double x:Key="SizerBaseThumbRadius">2</x:Double>
     <Thickness x:Key="SizerBasePadding">4</Thickness>
 
-    <Style TargetType="controls:SizerBase">
+    <Style BasedOn="{StaticResource DefaultContentSizerStyle}"
+           TargetType="controls:ContentSizer" />
+    <Style BasedOn="{StaticResource DefaultGridSplitterStyle}"
+           TargetType="controls:GridSplitter" />
+    <Style BasedOn="{StaticResource DefaultPropertySizerStyle}"
+           TargetType="controls:PropertySizer" />
+
+    <Style x:Key="DefaultSizerBaseStyle"
+           TargetType="controls:SizerBase">
         <Setter Property="IsTabStop" Value="True" />
         <Setter Property="UseSystemFocusVisuals" Value="True" />
         <Setter Property="HorizontalAlignment" Value="Stretch" />
@@ -124,4 +133,16 @@
         </Setter>
     </Style>
 
+    <Style x:Key="DefaultContentSizerStyle"
+           BasedOn="{StaticResource DefaultSizerBaseStyle}"
+           TargetType="controls:ContentSizer" />
+
+    <Style x:Key="DefaultGridSplitterStyle"
+           BasedOn="{StaticResource DefaultSizerBaseStyle}"
+           TargetType="controls:GridSplitter" />
+
+    <Style x:Key="DefaultPropertySizerStyle"
+           BasedOn="{StaticResource DefaultSizerBaseStyle}"
+           TargetType="controls:PropertySizer" />
+
 </ResourceDictionary>

From e5f45bf7683c319ee206a37402ace653c2e4f16d Mon Sep 17 00:00:00 2001
From: 0x5BFA <62196528+0x5bfa@users.noreply.github.com>
Date: Thu, 7 Aug 2025 22:09:35 +0900
Subject: [PATCH 2/2] Update

---
 components/Sizers/src/ContentSizer/ContentSizer.cs   | 7 +++++++
 components/Sizers/src/GridSplitter/GridSplitter.cs   | 8 ++++++++
 components/Sizers/src/PropertySizer/PropertySizer.cs | 7 +++++++
 components/Sizers/src/SizerBase.xaml                 | 2 ++
 4 files changed, 24 insertions(+)

diff --git a/components/Sizers/src/ContentSizer/ContentSizer.cs b/components/Sizers/src/ContentSizer/ContentSizer.cs
index 3de9fb05..fd527f68 100644
--- a/components/Sizers/src/ContentSizer/ContentSizer.cs
+++ b/components/Sizers/src/ContentSizer/ContentSizer.cs
@@ -9,4 +9,11 @@ namespace CommunityToolkit.WinUI.Controls;
 /// </summary>
 public partial class ContentSizer : SizerBase
 {
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ContentSizer"/> class.
+    /// </summary>
+    public ContentSizer()
+    {
+        DefaultStyleKey = typeof(ContentSizer);
+    }
 }
diff --git a/components/Sizers/src/GridSplitter/GridSplitter.cs b/components/Sizers/src/GridSplitter/GridSplitter.cs
index b52dfeea..1545f891 100644
--- a/components/Sizers/src/GridSplitter/GridSplitter.cs
+++ b/components/Sizers/src/GridSplitter/GridSplitter.cs
@@ -142,4 +142,12 @@ private RowDefinition? SiblingRow
             return null;
         }
     }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="GridSplitter"/> class.
+    /// </summary>
+    public GridSplitter()
+    {
+        DefaultStyleKey = typeof(GridSplitter);
+    }
 }
diff --git a/components/Sizers/src/PropertySizer/PropertySizer.cs b/components/Sizers/src/PropertySizer/PropertySizer.cs
index db6bd140..75d30252 100644
--- a/components/Sizers/src/PropertySizer/PropertySizer.cs
+++ b/components/Sizers/src/PropertySizer/PropertySizer.cs
@@ -9,4 +9,11 @@ namespace CommunityToolkit.WinUI.Controls;
 /// </summary>
 public partial class PropertySizer : SizerBase
 {
+    /// <summary>
+    /// Initializes a new instance of the <see cref="PropertySizer"/> class.
+    /// </summary>
+    public PropertySizer()
+    {
+        DefaultStyleKey = typeof(PropertySizer);
+    }
 }
diff --git a/components/Sizers/src/SizerBase.xaml b/components/Sizers/src/SizerBase.xaml
index 4ba6482e..0d8ad301 100644
--- a/components/Sizers/src/SizerBase.xaml
+++ b/components/Sizers/src/SizerBase.xaml
@@ -47,6 +47,8 @@
     <x:Double x:Key="SizerBaseThumbRadius">2</x:Double>
     <Thickness x:Key="SizerBasePadding">4</Thickness>
 
+    <Style BasedOn="{StaticResource DefaultSizerBaseStyle}"
+           TargetType="controls:SizerBase" />
     <Style BasedOn="{StaticResource DefaultContentSizerStyle}"
            TargetType="controls:ContentSizer" />
     <Style BasedOn="{StaticResource DefaultGridSplitterStyle}"