inabox/InABox.Avalonia/Theme/Classes/TextBox.axaml

<Styles xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Style Selector="TextBox">
        <Setter Property="BorderBrush" Value="{DynamicResource PrsTileBorder}" />
        <Setter Property="BorderThickness">
            <Setter.Value>
                <DynamicResource ResourceKey="PrsBorderThickness" />
            </Setter.Value>
        </Setter>
        <Setter Property="Background" Value="{DynamicResource PrsTileBackground}" />
        <Setter Property="Foreground" Value="{DynamicResource PrsTileForeground}" />
        <Setter Property="CornerRadius" Value="{DynamicResource PrsCornerRadius}" />
        <Setter Property="Margin" Value="{DynamicResource PrsControlSpacing}"/>
        <Setter Property="VerticalContentAlignment" Value="Center"/>
    </Style>
    
    <Style Selector="TextBox /template/ ContentPresenter#PART_ContentPresenter">
        <Setter Property="BorderThickness" Value="0" />
        <Setter Property="Background" Value="{DynamicResource PrsTileBackground}" />
        <Setter Property="Foreground" Value="{DynamicResource PrsTileForeground}" />
    </Style>
    
    <Style Selector="TextBox:pointerover /template/ ContentPresenter#PART_ContentPresenter">
        <Setter Property="BorderThickness" Value="0" />
        <Setter Property="Background" Value="{DynamicResource PrsTileBackground}" />
        <Setter Property="Foreground" Value="{DynamicResource PrsTileForeground}" />
    </Style>
    
    <Style Selector="TextBox /template/ Border#PART_BorderElement">
        <Setter Property="BorderThickness" Value="0" />
        <Setter Property="Background" Value="{DynamicResource PrsTileBackground}" />
    </Style>
    
    <Style Selector="TextBox:focus /template/ Border#PART_BorderElement">
        <Setter Property="BorderBrush" Value="{TemplateBinding BorderBrush}" />
		<Setter Property="BorderThickness" Value="{TemplateBinding BorderThickness}"/>
        <Setter Property="Background" Value="{TemplateBinding Background}" />
    </Style>
</Styles>