FPGACoder/HandyControl/HandyControl_Shared/Themes/Styles/RichTextBox.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:hc="clr-namespace:HandyControl.Controls">

    <Style x:Key="TextBoxBaseBaseStyle" TargetType="TextBoxBase">
        <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
        <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
        <Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="CaretBrush" Value="{DynamicResource PrimaryTextBrush}"/>
        <Setter Property="hc:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
        <Setter Property="KeyboardNavigation.TabNavigation" Value="None"/>
        <Setter Property="HorizontalContentAlignment" Value="Left"/>
        <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
        <Setter Property="AllowDrop" Value="true"/>
        <Setter Property="Padding" Value="2,7"/>
        <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
        <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Hidden"/>
        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Hidden"/>
        <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="TextBoxBase">
                    <Border x:Name="border" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
                        <ScrollViewer x:Name="PART_ContentHost" Padding="{TemplateBinding Padding}" Focusable="false" HorizontalScrollBarVisibility="{Binding Path=(ScrollViewer.HorizontalScrollBarVisibility),RelativeSource={RelativeSource TemplatedParent}}" VerticalScrollBarVisibility="{Binding Path=(ScrollViewer.VerticalScrollBarVisibility),RelativeSource={RelativeSource TemplatedParent}}"/>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsEnabled" Value="false">
                            <Setter Property="Opacity" TargetName="border" Value="0.4"/>
                        </Trigger>
                        <Trigger Property="IsMouseOver" Value="true">
                            <Setter Property="BorderBrush" TargetName="border" Value="{DynamicResource SecondaryBorderBrush}"/>
                        </Trigger>
                        <Trigger Property="IsFocused" Value="true">
                            <Setter Property="BorderBrush" TargetName="border" Value="{DynamicResource PrimaryBrush}"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="RichTextBoxBaseStyle" BasedOn="{StaticResource TextBoxBaseBaseStyle}" TargetType="RichTextBox">
        <Setter Property="MinWidth" Value="10"/>
    </Style>

    <Style BasedOn="{StaticResource RichTextBoxBaseStyle}" TargetType="RichTextBox"/>

</ResourceDictionary>