WPF圆角按钮与触发颜色变化

<Button x:Name="button1" Content="按钮1" Margin="10,10,0,0" Cursor="Pen">
            <Button.Template>
                <ControlTemplate>
                    <Border CornerRadius="15,15,15,15">
                        <Border.Background>
                            <SolidColorBrush x:Name="color2"></SolidColorBrush>
                        </Border.Background>
                        <Border.Triggers>
                            <EventTrigger RoutedEvent="Border.Loaded">
                                <BeginStoryboard>
                                    <Storyboard>
                                        <ColorAnimation Storyboard.TargetName="color2" Storyboard.TargetProperty="(SolidColorBrush.Color)" From="AliceBlue" To="AntiqueWhite" Duration="0:0:1" AutoReverse="True" RepeatBehavior="Forever"></ColorAnimation>
                                    </Storyboard>
                                </BeginStoryboard>
                            </EventTrigger>
                        </Border.Triggers>
                    </Border>
                </ControlTemplate>
            </Button.Template>
        </Button>
        <Button x:Name="button2" Content="按钮2" Margin="106,10,0,0" Opacity="0.5" BorderThickness="3" IsDefault="True" Click="button2_Click" Cursor="Wait" ToolTip="点击啊" HorizontalAlignment="Left"/>
        <Button x:Name="button3" Content="开始分析" Margin="10,77,0,0" Click="button3_Click">
            <Button.Template>
                <ControlTemplate>
                    <Border BorderThickness="1" CornerRadius="16,16,16,16" >
                        <Border.Background>
                            <SolidColorBrush x:Name="ColorQ"/>
                        </Border.Background>
                        <Border.Triggers>
                            <EventTrigger RoutedEvent="Button.Loaded">
                                <BeginStoryboard>
                                    <Storyboard>
                                        <ColorAnimation Storyboard.TargetName="ColorQ"
                                            Storyboard.TargetProperty="(SolidColorBrush.Color)"
                                            From="Red" To="Green" Duration="0:0:5"
                                            AutoReverse="True" RepeatBehavior="Forever"/>
                                    </Storyboard>
                                </BeginStoryboard>
                            </EventTrigger>
                        </Border.Triggers>
                    </Border>
                </ControlTemplate>
            </Button.Template>
        </Button>

        <Button x:Name="button1" Margin="10,10,0,0" Cursor="Pen" ToolTip="点击按钮" Click="button1_Click" Background="White">
            <Button.Template>
                <ControlTemplate>
                    <Border CornerRadius="15,15,15,15">
                        <Label Content="点击分析" FontFamily="微软雅黑" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="12">
                            <Label.Foreground>
                                <SolidColorBrush x:Name="FontColor"></SolidColorBrush>
                            </Label.Foreground>
                            <Label.Triggers>
                                <EventTrigger RoutedEvent="Border.Loaded">
                                    <BeginStoryboard>
                                        <Storyboard>
                                            <ColorAnimation Storyboard.TargetName="FontColor" Storyboard.TargetProperty="(SolidColorBrush.Color)" From="#000000" To="#ffffff" Duration="0:0:10" AutoReverse="True" RepeatBehavior="Forever"></ColorAnimation>
                                        </Storyboard>
                                    </BeginStoryboard>
                                </EventTrigger>
                            </Label.Triggers>
                        </Label>
                        <Border.Background>
                            <SolidColorBrush x:Name="color2"></SolidColorBrush>
                        </Border.Background>
                        <Border.Triggers>
                            <EventTrigger RoutedEvent="Border.Loaded">
                                <BeginStoryboard>
                                    <Storyboard>
                                        <ColorAnimation Storyboard.TargetName="color2" Storyboard.TargetProperty="(SolidColorBrush.Color)" From="Red" To="purple" Duration="0:0:1" AutoReverse="True" RepeatBehavior="Forever"></ColorAnimation>
                                    </Storyboard>
                                </BeginStoryboard>
                            </EventTrigger>
                        </Border.Triggers>
                    </Border>
                </ControlTemplate>
            </Button.Template>
        </Button>