I am setting both the FilterIconBackgroundFiltered and the FilterIconBackground properties on a RadVirtualGrid control in xaml. The FilterIconBackground property changes the filter icon color, but even after adding a filter to a column, the icon never changes to the FilterIconBackgroundFiltered color.
Any thoughts on why this might be happening?
Thanks!
        <tk:RadVirtualGrid x:Name="VirtualGrid"           
            FontSize="{Binding FontSize}"
            Foreground="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:ParticleReportControl}}, Path=Foreground}"
            Background="{StaticResource GsBackgroundDark}"
            CanUserFilterColumns="True"
            CanUserSortColumns="True" 
            ColumnHeaderForeground="{StaticResource GsForegroundMain}"
            ColumnHeaderBackground="{StaticResource GsBackgroundDark2}"
            CellTextAlignment="Center"
            LinesVisibility="Both"
            IsFilterable="True"
            FilterIconBackgroundFiltered="Red"
            FilterIconBackground="{StaticResource GsForegroundMain}"
            HorizontalLinesBrush="{StaticResource GsForegroundMain}"
            VerticalLinesBrush="{StaticResource GsForegroundMain}"
            MeasureTextOnRender="True"
            ShowDistinctFilters="False"
            tk:RadContextMenu.ContextMenu="{StaticResource CtxMenu}"
            CellDecorationsNeeded="VirtualGrid_OnCellDecorationsNeeded"
            HeaderCellDecorationsNeeded="VirtualGrid_OnHeaderCellDecorationsNeeded"
            OverlayBrushesNeeded="VirtualGrid_OnOverlayBrushesNeeded"
            HeaderSizeNeeded="VirtualGrid_HeaderSizeNeeded"
            >
        </tk:RadVirtualGrid>