Hello Nikolay,

Thank you for your post. I have been looking through it and I suggest you use the following style for the SummaryResultPresenter:

<Style TargetType="{x:Type igDP:SummaryResultPresenter}">
    <Setter Property="Padding" Value="1,1"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type igDP:SummaryResultPresenter}">
                <Border
			Background="{TemplateBinding Background}"
			BorderBrush="{TemplateBinding BorderBrush}"
			BorderThickness="1"
			Padding="{TemplateBinding Padding}"
			ToolTip="{Binding Path=SummaryResult.ToolTipResolved, RelativeSource={RelativeSource TemplatedParent}}">
                    <TextBox IsReadOnly="True" BorderThickness="0" Background="{TemplateBinding Background}" Text="{Binding Path=SummaryResult.DisplayTextAsync, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"/>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Setter Property="Margin" Value="0,0,0,2"/>
</Style>

Please let me know if this helps you or you need further assistance on this matter.

Looking forward for your reply.