WPF ListBox selection not grayed out when losing focus

Question

I want to visualize a listbox item highlighted when selected, regardless the focus of the parent listbox.

In this example I have two listboxes. In both listboxes the first (and only) element is selected. ListBox 1 does NOT have Focus. ListBox 2 does have focus. I want to have identical highlighting color.

How do I achieve this in a custom listbox / listboxitem style?

Answer 1

Found the answer myself in Blend.

    <SolidColorBrush x:Key="Item.SelectedInactive.Background" Color="#3D26A0DA"/>
    <SolidColorBrush x:Key="Item.SelectedInactive.Border" Color="#FF26A0DA"/>
    <SolidColorBrush x:Key="Item.SelectedActive.Background" Color="#3D26A0DA"/>
    <SolidColorBrush x:Key="Item.SelectedActive.Border" Color="#FF26A0DA"/>

I now use the same borders and backgrounds (active / inactive).