I want to get this.

Everything works so far, buttons act as filter and are bind to the grid control. All i want is the icons and counter on the button. Whats the correct way of implementing those?
<ToggleButton x:Name="IsErrorShown" Margin="4" Width="100" Content="{lex:LocText Errors, Assembly=Client}">
I have tried adding image like this:
            <ToggleButton x:Name="IsErrorShown" Margin="4" Width="100" Content="{lex:LocText Errors, Assembly=Client}">
            <StackPanel>
                <Image Source="Resources/Warning"/>
            </StackPanel>
        </ToggleButton>
but i get error that prop. Content is defined more then once.