How to make same color for treeview item and parent?

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C#

WPF

treeview

Hello,
I am creating Treeview in wpf.

Each parent item set random foreground color using converter.
I want all its children to set the same color. using only xaml.

Here is part of my code:

<HierarchicalDataTemplate DataType="{x:Type sotc:Category}" ItemsSource="{Binding Path=NoteList}">
   <TextBlock Text="{Binding Path=Name}" Forground="{Binding Path=Name, Convert={StaticResource Converter1}}"/>
   </HierarchicalDataTemplate>

<HierarchicalDataTemplate DataType="{x:Type sotc:Note}">
   <TextBlock Text="{Binding Path=Name}" />
   </HierarchicalDataTemplate>

What I wish to do is to set the second treeview item. Children in HierarchicalData the same forgound color has the parent.
Is there a way to do that?

Thank Ahead,