How to set a wide / "fat" vertical scroll bar?

[alexandrehtrb]

Hello,

I am trying to set a "fat" (wide) vertical scroll bar on AvaloniaEdit TextEditor, but when there are both vertical and horizontal scrolls, only the horizontal is fat, the vertical is thin.

How to make it always "fat"?

Only vertical:

Horizontal and vertical:

Video:

simplescreenrecorder3-2024-04-06_10.48.30.mp4

My Styles.xaml:

  <Style Selector="ScrollViewer">
    <Setter Property="AllowAutoHide" Value="False"/>
  </Style>

  <Style Selector="ScrollBar">
    <Setter Property="AllowAutoHide" Value="False"/>
  </Style>

  <Style Selector="AvaloniaEdit|TextEditor">
    <Setter Property="HorizontalScrollBarVisibility" Value="Auto"/>
    <Setter Property="VerticalScrollBarVisibility" Value="Visible"/>
  </Style>

  <Style Selector="AvaloniaEdit|TextEditor /template/ ScrollViewer#PART_ScrollViewer">
    <Setter Property="AllowAutoHide" Value="False"/>
  </Style>

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