Notaus, Emergency button, WPF Xaml

This is a default emergency button used to signal alarm states (blinking at given rate) made in WPF XAML an ready to use

 <Style x:Key="notAusButton" TargetType="{x:Type CheckBox}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="CheckBox">
                    <BulletDecorator Background="Transparent" Cursor="Hand">
                        <BulletDecorator.Bullet>
                            <Grid
                                Width="Auto"
                                Height="Auto"
                                Margin="0,4"
                                HorizontalAlignment="Center"
                                VerticalAlignment="Center">
                                <Border
                                    BorderBrush="Gray"
                                    BorderThickness="1"
                                    CornerRadius="50">
                                    <Border
                                        x:Name="outerBorder"
                                        Width="50"
                                        Height="50"
                                        Background="{StaticResource lightBackColor}"
                                        CornerRadius="50">
                                        <Border
                                            x:Name="innerBorder"
                                            Width="30"
                                            Height="30"
                                            Background="#FF979797"
                                            BorderBrush="Black"
                                            BorderThickness="0,0,3,3"
                                            CornerRadius="30">
                                            <Border
                                                Width="15"
                                                Height="15"
                                                BorderBrush="Gray"
                                                BorderThickness="1"
                                                CornerRadius="25" />
                                        </Border>
                                    </Border>
                                </Border>
                                <!--  OUTER  -->

                            </Grid>
                        </BulletDecorator.Bullet>

                    </BulletDecorator>

                    <ControlTemplate.Triggers>
                        <Trigger Property="IsChecked" Value="true">
                            <Trigger.EnterActions>
                                <BeginStoryboard Name="BlinkStory">
                                    <Storyboard>
                                        <DoubleAnimation
                                            AutoReverse="True"
                                            RepeatBehavior="Forever"
                                            Storyboard.TargetName="outerBorder"
                                            Storyboard.TargetProperty="Opacity"
                                            From="0.3"
                                            To="1"
                                            Duration="0:0:1" />
                                    </Storyboard>
                                </BeginStoryboard>
                                <BeginStoryboard Name="BlinkStory2">
                                    <Storyboard>
                                        <ColorAnimation
                                            AutoReverse="True"
                                            FillBehavior="Stop"
                                            RepeatBehavior="Forever"
                                            Storyboard.TargetName="innerBorder"
                                            Storyboard.TargetProperty="(Button.Background).(SolidColorBrush.Color)"
                                            To="Orange"
                                            Duration="0:0:0.5" />
                                    </Storyboard>
                                </BeginStoryboard>
                            </Trigger.EnterActions>
                            <Trigger.ExitActions>
                                <RemoveStoryboard BeginStoryboardName="BlinkStory" />
                                <RemoveStoryboard BeginStoryboardName="BlinkStory2" />
                            </Trigger.ExitActions>


                            <Setter TargetName="outerBorder" Property="Background" Value="Yellow" />
                            <Setter TargetName="innerBorder" Property="Background" Value="Red" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>