restore datagrid selection indicator.
MODIFY
WalletWasabi.Fluent/Styles/DataGrid.axaml
WalletWasabi.Fluent/Styles/DataGrid.axaml
<Style Selector="DataGridRow:pointerover /template/ Rectangle#BackgroundRectangle">
<Setter Property="Fill" Value="{DynamicResource DataGridRowSelectedBackgroundColor}" />
</Style>
+ <Style Selector="DataGridRow:selected /template/ Border#PART_SelectionIndicator">
+ <Setter Property="BorderBrush" Value="{DynamicResource DataGridRowIndicatorBrush}" />
+ </Style>
<Style Selector="DataGridRow /template/ Border#PART_SelectionIndicator">
<Setter Property="BorderBrush" Value="Transparent" />
</Style>

restore datagrid selection indicator.