Better set MinHeight in controls with drop-down chevrons

src/Avalonia.Themes.Default/Controls/SplitButton.xaml

@@ -16,6 +16,7 @@
     <x:Double x:Key="SplitButtonPrimaryButtonSize">24</x:Double>
     <x:Double x:Key="SplitButtonSecondaryButtonSize">24</x:Double>
     <x:Double x:Key="SplitButtonSeparatorWidth">1</x:Double>
+    <x:Double x:Key="SplitButtonMinHeight">24</x:Double>
     <Thickness x:Key="SplitButtonBorderThemeThickness">1</Thickness>
 
     <converters:MarginMultiplierConverter x:Key="PrimaryButtonBorderMultiplier" Left="True" Top="True" Bottom="True" Indent="1" />
@@ -59,6 +60,7 @@
     <Setter Property="Foreground" Value="{DynamicResource SplitButtonForeground}" />
     <Setter Property="BorderBrush" Value="{DynamicResource SplitButtonBorderBrush}" />
     <Setter Property="BorderThickness" Value="{DynamicResource SplitButtonBorderThemeThickness}" />
+    <Setter Property="MinHeight" Value="{DynamicResource SplitButtonMinHeight}" />
     <Setter Property="HorizontalAlignment" Value="Left" />
     <Setter Property="VerticalAlignment" Value="Center" />
     <Setter Property="HorizontalContentAlignment" Value="Stretch" />

src/Avalonia.Themes.Fluent/Controls/ComboBox.xaml

@@ -37,6 +37,7 @@
     <Setter Property="CornerRadius" Value="{DynamicResource ControlCornerRadius}" />
     <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled" />
     <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
+    <Setter Property="MinHeight" Value="{DynamicResource ComboBoxMinHeight}" />
     <Setter Property="HorizontalContentAlignment" Value="Stretch" />
     <Setter Property="VerticalContentAlignment" Value="Center" />
     <Setter Property="HorizontalAlignment" Value="Left" />
@@ -106,7 +107,6 @@
                       Grid.Column="1"
                       UseLayoutRounding="False"
                       IsHitTestVisible="False"
-                      MinHeight="{DynamicResource ComboBoxMinHeight}"
                       Height="12"
                       Width="12"
                       Margin="0,0,10,0"

src/Avalonia.Themes.Fluent/Controls/DropDownButton.xaml

@@ -21,6 +21,7 @@
     <Setter Property="BorderBrush" Value="{DynamicResource ButtonBorderBrush}" />
     <Setter Property="BorderThickness" Value="{DynamicResource ButtonBorderThemeThickness}" />
     <Setter Property="Padding" Value="{DynamicResource ButtonPadding}" />
+    <Setter Property="MinHeight" Value="{DynamicResource DropDownButtonMinHeight}" />
     <Setter Property="HorizontalAlignment" Value="Left" />
     <Setter Property="VerticalAlignment" Value="Center" />
     <Setter Property="HorizontalContentAlignment" Value="Stretch" />
@@ -56,7 +57,6 @@
                         Grid.Column="1"
                         UseLayoutRounding="False"
                         IsHitTestVisible="False"
-                        MinHeight="{DynamicResource DropDownButtonMinHeight}"
                         Height="12"
                         Width="12"
                         Margin="0,0,10,0"

src/Avalonia.Themes.Fluent/Controls/SplitButton.xaml

@@ -24,6 +24,7 @@
     <x:Double x:Key="SplitButtonPrimaryButtonSize">32</x:Double>
     <x:Double x:Key="SplitButtonSecondaryButtonSize">32</x:Double>
     <x:Double x:Key="SplitButtonSeparatorWidth">1</x:Double>
+    <x:Double x:Key="SplitButtonMinHeight">32</x:Double>
 
     <converters:MarginMultiplierConverter x:Key="PrimaryButtonBorderMultiplier" Left="True" Top="True" Bottom="True" Indent="1" />
     <converters:MarginMultiplierConverter x:Key="SecondaryButtonBorderMultiplier" Right="True" Top="True" Bottom="True" Indent="1" />
@@ -35,6 +36,7 @@
     <Setter Property="Foreground" Value="{DynamicResource SplitButtonForeground}" />
     <Setter Property="BorderBrush" Value="{DynamicResource SplitButtonBorderBrush}" />
     <Setter Property="BorderThickness" Value="{DynamicResource SplitButtonBorderThemeThickness}" />
+    <Setter Property="MinHeight" Value="{DynamicResource SplitButtonMinHeight}" />
     <Setter Property="HorizontalAlignment" Value="Left" />
     <Setter Property="VerticalAlignment" Value="Center" />
     <Setter Property="HorizontalContentAlignment" Value="Stretch" />