In preparation for an dataminer upgrade to a later version then 10.6.4 i'm currently running into an issue with cube version 10.6.2609.3124-41469141
In previous versions we had tab highlighting when we've selected an output which had an connected source to it. It would be able to highlight the correct tab so operation knew where the source is coming from even when an other tab was selected
Selected destination:

Highlighted tabs in sources

However when i connect with the newer cube version i end up with this:

How can i get the behavior of tab highlighting back?
there is an custom XAML styling in place; however there is a small part for tab items and i'm not sure if it is being used at all since i dont see that yellow in there:
<Style x:Key="CustomTabItemStyle1" TargetType="{x:Type TabItem}" BasedOn="{StaticResource {x:Static model:TabItemBlock.DefaultStyleKey}}">
<Style.Resources>
<SolidColorBrush x:Key="TabItemHotBackground" Color="#d9dbdb" />
<SolidColorBrush x:Key="TabItemUnselectedBackground" Color="#d9dbdb" />
<SolidColorBrush x:Key="TabItemSelectedBackground" Color="#686868" />
<SolidColorBrush x:Key="TabItemSelectedForeground" Color="#ffffff" />
<SolidColorBrush x:Key="TabItemDisabledBackground" Color="#000000" />
</Style.Resources>
<Setter Property="Foreground" Value="#000000" />
</Style>
<Style x:Key="CustomTabItemStyle2" TargetType="{x:Type TabItem}" BasedOn="{StaticResource {x:Static model:TabItemBlock.DefaultStyleKey}}">
<Style.Resources>
<SolidColorBrush x:Key="TabItemHotBackground" Color="#bfbfbf" />
<SolidColorBrush x:Key="TabItemUnselectedBackground" Color="#bfbfbf" />
<SolidColorBrush x:Key="TabItemSelectedBackground" Color="#686868" />
<SolidColorBrush x:Key="TabItemSelectedForeground" Color="#ffffff" />
<SolidColorBrush x:Key="TabItemDisabledBackground" Color="#000000" />
</Style.Resources>
<Setter Property="Foreground" Value="#000000" />
</Style>