Kepler-Release/Venus/Venus_Themes/Styles/RadioButton.xaml

<ResourceDictionary
	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
	xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
	xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
    xmlns:ctrl="http://OpenSEMI.Ctrlib.com/presentation"
	mc:Ignorable="d">

    <Style x:Key="Button_RadioButton" TargetType="{x:Type RadioButton}">
        <Setter Property="VerticalContentAlignment"
                        Value="Center" />
        <Setter Property="HorizontalContentAlignment"
                        Value="Center" />
        <Setter Property="Background"
                        Value="LightGray" />
        <Setter Property="BorderBrush"
                        Value="White" />
        <Setter Property="BorderThickness"
                        Value="0" />
        <Setter Property="Padding"
                        Value="10,0" />
        <Setter Property="Cursor" Value="Hand"/>
        <Setter  Property="Foreground" Value="White"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type RadioButton}">
                    <Grid x:Name="GrdMain">
                        <Border x:Name="BdrBack"
                                        BorderBrush="{TemplateBinding BorderBrush}"
                                        BorderThickness="{TemplateBinding BorderThickness}"
                                        Background="{StaticResource Button_BG_Unable}"
                                        CornerRadius="5"                                           
                                       />
                        <Border x:Name="BdrHover"
                                        BorderBrush="Transparent"
                                        BorderThickness="{TemplateBinding BorderThickness}"
                                        Background="Gray"
                                                                       
                                        Opacity="0" />
                        <Border x:Name="BdrChecked"
                                        BorderBrush="{TemplateBinding BorderBrush}"
                                        BorderThickness="{TemplateBinding BorderThickness}"
                                        Background="{StaticResource Button_BG}"
                                      
                                        CornerRadius="5"
                                        Visibility="Collapsed" />
                        <ContentPresenter x:Name="Content"
                                                  VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                                                  HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                  Margin="{TemplateBinding Padding}"
                                                  Content="{TemplateBinding Content}"
                                                  TextBlock.Foreground="{TemplateBinding Foreground}" />
                    </Grid>
                    <ControlTemplate.Triggers>
                        <MultiDataTrigger>
                           
                        </MultiDataTrigger>
                        <MultiDataTrigger>
                            <MultiDataTrigger.Conditions>
                                <Condition Binding="{Binding IsMouseOver,RelativeSource={RelativeSource Self}}"
                                                   Value="True" />
                                <Condition Binding="{Binding IsChecked,RelativeSource={RelativeSource Self}}"
                                                   Value="False" />
                            </MultiDataTrigger.Conditions>
                            <MultiDataTrigger.EnterActions>
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation Storyboard.TargetName="BdrHover"
                                                                 Storyboard.TargetProperty="Opacity"
                                                                 To="0.2"
                                                                 Duration="0:0:0.3" />
                                    </Storyboard>
                                </BeginStoryboard>

                            </MultiDataTrigger.EnterActions>
                            <MultiDataTrigger.ExitActions>
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation Storyboard.TargetName="BdrHover"
                                                                 Storyboard.TargetProperty="Opacity"
                                                                 Duration="0:0:0.3" />
                                    </Storyboard>
                                </BeginStoryboard>
                            </MultiDataTrigger.ExitActions>
                        </MultiDataTrigger>
                        <Trigger Property="IsChecked"
                                         Value="True">
                            
                            <Setter TargetName="BdrChecked"
                                            Property="Visibility"
                                            Value="Visible" />
                            <Setter Property="IsEnabled" Value="False"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

</ResourceDictionary>