fix: extract template property.

src/Ursa.Themes.Semi/Controls/KeyGestureInput.axaml

@@ -3,22 +3,25 @@
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:converters="using:Avalonia.Controls.Converters"
     xmlns:u="https://irihi.tech/ursa">
-    <!--  Add Resources Here  -->
     <converters:PlatformKeyGestureConverter x:Key="KeyGestureConverter" />
 
     <ControlTheme x:Key="{x:Type u:KeyGestureInput}" TargetType="u:KeyGestureInput">
         <Setter Property="Width" Value="{DynamicResource KeyGestureInputWidth}" />
         <Setter Property="Height" Value="{DynamicResource KeyGestureInputHeight}" />
+        <Setter Property="Background" Value="{DynamicResource KeyGestureInputBackground}" />
+        <Setter Property="BorderBrush" Value="{DynamicResource KeyGestureInputBorderBrush}" />
+        <Setter Property="BorderThickness" Value="{DynamicResource KeyGestureInputBorderThickness}" />
         <Setter Property="CornerRadius" Value="{DynamicResource KeyGestureInputCornerRadius}" />
+
         <Setter Property="Template">
             <ControlTemplate TargetType="u:KeyGestureInput">
                 <Border
                     Name="Background"
                     HorizontalAlignment="Stretch"
                     VerticalAlignment="Stretch"
-                    Background="{DynamicResource KeyGestureInputBackground}"
-                    BorderBrush="Transparent"
-                    BorderThickness="1"
+                    Background="{TemplateBinding Background}"
+                    BorderBrush="{TemplateBinding BorderBrush}"
+                    BorderThickness="{TemplateBinding BorderThickness}"
                     CornerRadius="{TemplateBinding CornerRadius}">
                     <SelectableTextBlock
                         HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"

src/Ursa.Themes.Semi/Themes/Shared/KeyGestureInput.axaml

@@ -3,4 +3,5 @@
     <x:Double x:Key="KeyGestureInputWidth">80</x:Double>
     <x:Double x:Key="KeyGestureInputHeight">32</x:Double>
     <CornerRadius x:Key="KeyGestureInputCornerRadius">3</CornerRadius>
+    <Thickness x:Key="KeyGestureInputBorderThickness">1</Thickness>
 </ResourceDictionary>