Develop Reference

How can I change the color of a button in WPF that has its style defined as a static resource?

I am trying to change the background colour of my buttons when the mouse is hovering on them as it looks horrible in combination with my choice of UI design.
This seems like something intuitive however I didn't manage to wrap my head around how I can actually do it.
Also, I assume that I will also need to change the colour of the button while it is being clicked. Help with that will also be welcome.
Here is what you can find in the App.xaml file.
As you can see, I tried using but that gave me no luck.
<Application.Resources>
<!--Sets the default colours I will be using for this project-->
<SolidColorBrush x:Key="textColor" Color="#0EFFAF"/>
<SolidColorBrush x:Key="backgroundColor" Color="#202223"/>
<!--Sets the default button style so that whenever I want to add a new button, I don't have to re-write the same code-->
<Style TargetType="Button" x:Key="buttonStyle">
<Setter Property="Foreground" Value="{StaticResource textColor}"/>
<Setter Property="Background" Value="{StaticResource backgroundColor}"/>
<Setter Property="FontSize" Value="30"/>
<Setter Property="FontFamily" Value="Calibri"/>
<Setter Property="BorderThickness" Value="2"/>
<Setter Property="BorderBrush" Value="#0EFFAF"/>
<Setter Property="Margin" Value="100,35,100,35"/>
<Style.Triggers>
<Trigger Property="IsMouseDirectlyOver" Value="True">
<Setter Property="Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</Application.Resources>
For reference, here is one of the buttons that uses this style (present in the xaml file for the main window).
<Button x:Name="UpdateButton"
Style="{StaticResource buttonStyle}"
Click="UpdateButton_Click"
Content="Update "
Grid.Column="0"
Grid.Row="3"/>
I have also tried this but with no luck.
Thank you in advance!

It looks like you're mostly on the right track, however I think you're going to need to override the Triggers on the ControlTemplate level. I modified my own code using your example and found that the mouse over trigger stopped working.
Instead of <Style.Triggers> here's the structure you need (based on my own code):
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="border" CornerRadius="16" BorderBrush="Transparent" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
<ContentPresenter x:Name="contentPresenter" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" TargetName="border" Value="#e8e7e7"/>
<Setter Property="Foreground" Value="White"/>
<Setter Property="BorderBrush" Value="#e8e7e7"></Setter>
</Trigger>
<Trigger Property="IsEnabled" Value="True">
<Setter Property="Background" TargetName="border" Value="#ed0d6c"/>
<Setter Property="BorderBrush" Value="#00afdd"></Setter>
<Setter Property="Foreground" Value="White"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" TargetName="border" Value="#ff3c8f"/>
<Setter Property="BorderBrush" Value="#254c8e"></Setter>
<Setter Property="Foreground" Value="White"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Background" TargetName="border" Value="#ed0d6c"/>
<Setter Property="Foreground" Value="White"/>
</Trigger>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter Property="Background" TargetName="border" Value="#FFBCDDEE"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
The way that I came up with this structure was using Visual Studio properties page to generate the style template and then modifying it as I needed.

WPF Material Design Raised Button Hovered state

I'm trying to recreate a material design look & feel for a button. For the focused (hovered) state the guidelines say to make a 12 % #000000 shade over the button. I was wondering how this could be achieved in WPF.
I've been looking around a good option would be to add a non-hittable rectangle over the button with a 12 % opacity and a color of #000000. I want to implement this as a style, but I have no idea how to do that.
My style looks like this at moment:
<Style x:Key="MaterialRaisedButton" TargetType="ToggleButton">
<Setter Property="Padding" Value="8 0"/>
<Setter Property="Margin" Value="8 6 8 6"/>
<Setter Property="Height" Value="36"/>
<Setter Property="MinWidth" Value="64"/>
<Setter Property="Foreground" Value="Black"/>
<Setter Property="Background" Value="{StaticResource MaterialSecondaryColorBrush}"/>
<Setter Property="Effect" Value="{StaticResource z-depth2}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToggleButton">
<Grid>
<Rectangle RadiusX="4" RadiusY="4" Fill="#000000" Opacity="0.12"/>
<Border CornerRadius="4" Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource Material12Black}"/>
</Trigger>
</Style.Triggers>
</Style>
If there are any other methods of doing this, I'm all ear as well :)

In the fill of the rectangle you can specify opacity in the hex color like #00000000, the first two values are the opacity. So 12% would be #1e000000. The following will show .5 opacity rectangle when mouse is over other wise opacity is 0.
<Rectangle.Style>
<Style TargetType="{x:Type Rectangle}">
<Setter Property="Opacity" Value="0"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Opacity" Value=".5"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="false">
<Setter Property="Opacity" Value="0"/>
</Trigger>
</Style.Triggers>
</Style>
</Rectangle.Style>
</Rectangle>

Update:
If anybody wants to reuse the code for a material-like button, the code is below. I used the ripple effect from this stackoverflower along with the shadows from this source. Hopefully this can help others recreating Material design without the toolkit :)
<Style x:Key="MaterialRaisedButton2" TargetType="Button">
<Setter Property="Padding" Value="8 0"/>
<Setter Property="Margin" Value="8 6 8 6"/>
<Setter Property="Height" Value="36"/>
<Setter Property="MinWidth" Value="64"/>
<Setter Property="Foreground" Value="{StaticResource NormalTextBrush}"/>
<Setter Property="Background" Value="{StaticResource MaterialSecondaryColorBrush}"/>
<Setter Property="Effect" Value="{StaticResource z-depth2}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<cons:RippleEffectDecorator Height="{TemplateBinding Height}" Width="{TemplateBinding Width}" Background="{TemplateBinding Background}" HighlightBackground="#1e000000" Grid.Row="0" Grid.Column="0" Panel.ZIndex="0">
<Grid>
<Rectangle RadiusX="4" RadiusY="4" Fill="#1e000000" Panel.ZIndex="1">
<Rectangle.Style>
<Style TargetType="{x:Type Rectangle}">
<Setter Property="Opacity" Value="0"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Opacity" Value="0.12"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="false">
<Setter Property="Opacity" Value="0"/>
</Trigger>
</Style.Triggers>
</Style>
</Rectangle.Style>
</Rectangle>
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Grid>
</cons:RippleEffectDecorator>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" Value="#1FFFFFFF"/>
<Setter Property="Foreground" Value="#42FFFFFF"/>
</Trigger>
</Style.Triggers>
</Style>

Border Color For Toggle Button Does not change?

I have the following style
<Style TargetType="{x:Type ToggleButton}" x:Key="ListToggleButton">
<Setter Property="FontSize" Value="15" />
<Setter Property="SnapsToDevicePixels" Value="True" />
<Setter Property="Foreground" Value="#FF232A2E"/>
<Setter Property="Background" Value="White"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Border Background="{TemplateBinding Background}" BorderBrush="#FFECECEC" BorderThickness="0,0,0,1">
<Grid>
<ContentPresenter x:Name="MyContentPresenter" Content="{TemplateBinding Content}" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0,0,0,0" />
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Background" Value="#FF232A2E"/>
<Setter Property="BorderBrush" Value="#FFECECEC"/>
<Setter Property="BorderThickness" Value="0,0,0,1"/>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Background" Value="#FFF5F5F5"/>
<Setter Property="BorderBrush" Value="#FF25a0da"/>
<Setter Property="BorderThickness" Value="0,0,0,2"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I want to change the border color when I checked the button, background changes but border no !
What I miss
Thanks in advance

You need to specify a name for the border, and specify it under TargetName in the Setter. When you omit TargetName, it will set the value of the property of the owner of the trigger (in this case the ToggleButton itself). Background setter is working because the border's background is template-bound to the togglebutton's background property.
<Style TargetType="{x:Type ToggleButton}" x:Key="ListToggleButton">
<Setter Property="FontSize" Value="15" />
<Setter Property="SnapsToDevicePixels" Value="True" />
<Setter Property="Foreground" Value="#FF232A2E"/>
<Setter Property="Background" Value="White"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Border x:Name="ButtonBorder" Background="{TemplateBinding Background}" BorderBrush="#FFECECEC" BorderThickness="0,0,0,1">
<Grid>
<ContentPresenter x:Name="MyContentPresenter" Content="{TemplateBinding Content}" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0,0,0,0" />
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Background" Value="#FF232A2E"/>
<Setter Property="BorderBrush" Value="#FFECECEC" TargetName="ButtonBorder"/>
<Setter Property="BorderThickness" Value="0,0,0,1" TargetName="ButtonBorder"/>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Background" Value="#FFF5F5F5"/>
<Setter Property="BorderBrush" Value="#FF25a0da" TargetName="ButtonBorder"/>
<Setter Property="BorderThickness" Value="0,0,0,2" TargetName="ButtonBorder"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

WPF: Cant find correct BorderBrush after setting Style

I have a button which I apply a style too. After the style is applied I have a test that checks the BorderBrush of the button to make sure the style was correctly applied. This test always fails, because the BorderBrush never gets updated in the Buttons properties.
Is there a way for me to get the actual BorderBrush being displayed? All i can get is the default BorderBrush, not the applied styles value.
The style I am using is this:
<Style x:Key="ActiveModuleBtnStyleOn" TargetType="Button">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<Border Margin="0"
BorderThickness="3"
BorderBrush="Green"
Background="White"
VerticalAlignment="Stretch"
CornerRadius="4"
HorizontalAlignment="Stretch">
<Border.Effect>
<DropShadowEffect BlurRadius="10" Color="Black" Direction="325" Opacity=".5" RenderingBias="Quality" ShadowDepth="5" />
</Border.Effect>
</Border>
<TextBlock Margin="2" Text="{TemplateBinding Content}" TextWrapping="Wrap" TextAlignment="Center" VerticalAlignment="Center" HorizontalAlignment="Center"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="IsEnabled" Value="true"/>
</Style>
Then I apply the style like this:
if(var1 == 1)
TopologyNvTxBtn.Style = this.FindResource("ActiveModuleBtnStyleOn") as Style;
else
TopologyNvTxBtn.Style = this.FindResource("ActiveModuleBtnStyleOff") as Style;
In my test app, I want to check which style has been applied. The difference between the two styles is the border brush. I would like to do something like this:
if(TopologyNvTxBtn.BorderBrush == Brushes.Green)
return PASS;
But the BorderBrush never changes (e.g. in a watch window, it stays the same as the default buttons style BorderBrush), but its definitely applied correctly as in the GUI it turns green.
How can i access this property in my test?
Many thanks in advance

The BorderBrush property of the Button is not bound to anything in your template. You need to do this in the control template:
<Style x:Key="ActiveModuleBtnStyleOn" TargetType="Button">
<Setter Property="BorderBrush" Value="Green" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<Border Margin="0"
BorderThickness="3"
BorderBrush="{TemplateBinding BorderBrush}"
Background="White"
VerticalAlignment="Stretch"
CornerRadius="4"
HorizontalAlignment="Stretch">
<Border.Effect>
<DropShadowEffect BlurRadius="10" Color="Black" Direction="325" Opacity=".5" RenderingBias="Quality" ShadowDepth="5" />
</Border.Effect>
</Border>
<TextBlock Margin="2" Text="{TemplateBinding Content}" TextWrapping="Wrap" TextAlignment="Center" VerticalAlignment="Center" HorizontalAlignment="Center"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="IsEnabled" Value="true"/>
</Style>
Notice how the BorderBrush is now bound to the BorderBrush property of the Button. Then you you can set the BorderBrush in the style and should be able to access it in this way:
if(TopologyNvTxBtn.BorderBrush == Brushes.Green)
Let me know if that works.
Cheers,
Eric

As I stated above, the Border is part of the Button ControlTemplate. I just launched Blend and got a copy of the "Factory" template. With this, you can do pretty much everything with it (assuming you know about Stylying.):
<Style x:Key="FocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<SolidColorBrush x:Key="Button.Static.Background" Color="#FFDDDDDD"/>
<SolidColorBrush x:Key="Button.Static.Border" Color="#FF707070"/>
<SolidColorBrush x:Key="Button.MouseOver.Background" Color="#FFBEE6FD"/>
<SolidColorBrush x:Key="Button.MouseOver.Border" Color="#FF3C7FB1"/>
<SolidColorBrush x:Key="Button.Pressed.Background" Color="#FFC4E5F6"/>
<SolidColorBrush x:Key="Button.Pressed.Border" Color="#FF2C628B"/>
<SolidColorBrush x:Key="Button.Disabled.Background" Color="#FFF4F4F4"/>
<SolidColorBrush x:Key="Button.Disabled.Border" Color="#FFADB2B5"/>
<SolidColorBrush x:Key="Button.Disabled.Foreground" Color="#FF838383"/>
<Style x:Key="ButtonStyle1" TargetType="{x:Type Button}">
<Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}"/>
<Setter Property="Background" Value="{StaticResource Button.Static.Background}"/>
<Setter Property="BorderBrush" Value="{StaticResource Button.Static.Border}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
<ContentPresenter x:Name="contentPresenter" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsDefaulted" Value="true">
<Setter Property="BorderBrush" TargetName="border" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.MouseOver.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.MouseOver.Border}"/>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Pressed.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Pressed.Border}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Disabled.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Disabled.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="{StaticResource Button.Disabled.Foreground}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
MSDN has a good introductory tutorial about Style and Templates. Besides, you can find tons of articles around the web!
The Button itself is pretty much this:
<Border
x:Name="border"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
SnapsToDevicePixels="true">
<ContentPresenter
x:Name="contentPresenter"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
Focusable="False"
RecognizesAccessKey="True"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
So, what your looking for is Triggers, you'll have to add and change as you wish these tags:
<ControlTemplate.Triggers>
<Trigger Property="IsDefaulted" Value="true">
<Setter Property="BorderBrush" TargetName="border" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.MouseOver.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.MouseOver.Border}"/>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Pressed.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Pressed.Border}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Disabled.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Disabled.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="{StaticResource Button.Disabled.Foreground}"/>
</Trigger>
</ControlTemplate.Triggers>
Things to pay attention: TargetName and every <Trigger Property="IsDefaulted" Value="true"> alike!
Good luck!

how do I remove border and effects from WPF repeatbutton when an imagebrush is used as the background

I am working with a repeatbutton object in WPF, the button needs to be graphic based (Image brush background and no border or other superfluous effects).
The problem I have is that no matter what i try there is still a white rectangle around the button, and, i am not sure now after looking at this for a few hours that I am sure I understand why or how to remove it.
I have created the button using the following in the XAML
<RepeatButton Content="" BorderThickness="0" HorizontalAlignment="Left" Margin="334,265,0,0" VerticalAlignment="Top" Width="149" Height="100" Background="{DynamicResource ImageBrush_Decrement}" Style="{DynamicResource RepeatButtonStyle_noflash}" d:LayoutOverrides="HorizontalAlignment"/>
You will note that I am referencing a style of "RepeatButtonNoFlash" which i used to remove the defaultrender (as it was causing a flashing effect, this style is defined in a shared dictionary as below
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero">
<Style x:Key="ButtonFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="0" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<!-- Resource dictionary entries should be defined here. -->
<Style x:Key="BaseButtonStyle" TargetType="{x:Type ButtonBase}">
<Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ButtonBase}">
<Microsoft_Windows_Themes:ButtonChrome x:Name="Chrome" Background="{TemplateBinding Background}" RenderMouseOver="False" RenderPressed="{TemplateBinding IsPressed}" RenderDefaulted="False" SnapsToDevicePixels="true" Style="{DynamicResource ButtonChromeStyle_noborder}">
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Microsoft_Windows_Themes:ButtonChrome>
<ControlTemplate.Triggers>
<Trigger Property="IsKeyboardFocused" Value="true">
<Setter Property="RenderDefaulted" TargetName="Chrome" Value="true"/>
</Trigger>
<Trigger Property="ToggleButton.IsChecked" Value="true">
<Setter Property="RenderPressed" TargetName="Chrome" Value="true"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="#ADADAD"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="RepeatButtonStyle_noflash" BasedOn="{StaticResource BaseButtonStyle}" TargetType="{x:Type RepeatButton}">
<Setter Property="Stylus.IsPressAndHoldEnabled" Value="false"/>
</Style>
</ResourceDictionary>
regards
Dan

It's coming from the Microsoft_Windows_Themes:ButtonChrome try replacing that with a border or something, should get rid of it.
<Style x:Key="BaseButtonStyle" TargetType="{x:Type ButtonBase}">
<Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ButtonBase}">
<Border Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="#ADADAD"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>