How do I remove the Mouse Over Effect on WPF Ribbon Group? - wpf

Question

I'm working on this Ribbon Control in WPF: System.Windows.Controls.Ribbon.Ribbon
I've made the background orange and I've changed the style slightly. It looks like this:
When I move the cursor over a group it looks like this:
I want to remove the white mouse over / hover effect, but I don't know which Style or Template I should look at. I've tried all these:
Ribbon
RibbonTab
RibbonTabHeader
RibbonButton
RibbonGroup
Is it possible? How do I do it?

Answer 1

So it is inside the style of the RibbonGroup:
<!--Ribbon Group - Style-->
<Style TargetType="RibbonGroup">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate x:Name="ribbonGroupControlTemplate" TargetType="RibbonGroup" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Border Background="{TemplateBinding Panel.Background}" Name="GroupBorder" Margin="1,2,0,0">
<Grid Name="MainGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" MinHeight="16" />
</Grid.RowDefinitions>
<Border BorderThickness="1,1,1,1" CornerRadius="2,2,2,2" BorderBrush="{TemplateBinding RibbonControlService.MouseOverBorderBrush}" Background="{TemplateBinding RibbonControlService.MouseOverBackground}" Name="PART_HotBackground" Opacity="0" SnapsToDevicePixels="True" Grid.RowSpan="3" />
<Border Background="{TemplateBinding Border.BorderBrush}" Name="SeparatorBorder" Width="1" Height="75" VerticalAlignment="Center" SnapsToDevicePixels="True" Grid.Column="1" Grid.RowSpan="3" />
<Border Padding="3,0,3,0" Margin="2,1,2,0">
<Grid>
<ItemsPresenter Name="ItemsPresenter" />
<ContentControl Name="PART_TemplateContentControl" Visibility="Collapsed" Focusable="False" />
</Grid>
...
The culprit is this Border:
<Border BorderThickness="1,1,1,1" CornerRadius="2,2,2,2" BorderBrush="{TemplateBinding RibbonControlService.MouseOverBorderBrush}" Background="{TemplateBinding RibbonControlService.MouseOverBackground}" Name="PART_HotBackground" Opacity="0" SnapsToDevicePixels="True" Grid.RowSpan="3" />
When I comment out or remove that border and the triggers that go with it; it solves my problem.