add a margin around content.
MODIFY
WalletWasabi.Fluent/Views/MainView.axaml
WalletWasabi.Fluent/Views/MainView.axaml
<Border Background="#212121" BoxShadow="0 1 4 #131313" IsHitTestVisible="False" />
<DockPanel>
<local:StatusBar DockPanel.Dock="Bottom" DataContext="{Binding StatusBar}" VerticalAlignment="Bottom" Height="32" TextBlock.FontSize="12" />
+ <Panel Margin="20 20 20 0">
<rxui:RoutedViewHost Router="{Binding Router}">
<rxui:RoutedViewHost.ViewLocator>
<vl:ScreenViewLocator />
VerticalAlignment="Center" />
</rxui:RoutedViewHost.DefaultContent>
</rxui:RoutedViewHost>
+ </Panel>
</DockPanel>
</Panel>
</SplitView>

add a margin around content.