I want to change the Foreground of the button when pressed, I was able to do this for MouseOver but not for a pressed button
<Style TargetType="telerik:GroupHeaderButton">
<Setter Property="helpers:ThemeHelper.CheckedBrush" Value="{StaticResource GridView_ItemBackground_Over}"/>
<Setter Property="helpers:ThemeHelper.MouseOverBrush" Value="{StaticResource ItemBackground_MouseOver}"/>
<Setter Property="helpers:ThemeHelper.PressedBrush" Value="{StaticResource GridView_ItemBackground_Over}"/>
<Setter Property="Background" Value="{StaticResource AppointmentItemBackground_UnSelected}"/>
<Setter Property="Foreground" Value="{StaticResource EditAppointmentTemplateBackGround}"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Foreground" Value="{StaticResource ControlForeground_Normal}"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Foreground" Value="{StaticResource ControlForeground_Normal}"/>
</Trigger>
</Style.Triggers>
</Style>
Although I registered Trigger to IsPressed but it does nothing