Add TreeDataGrid theme
MODIFY
WalletWasabi.Fluent/Styles/Themes/BaseDark.axaml
WalletWasabi.Fluent/Styles/Themes/BaseDark.axaml
<!-- Needs to be here because of dependency reason -->
<StyleInclude Source="avares://Avalonia.Controls.DataGrid/Themes/Fluent.xaml" />
<StyleInclude Source="avares://DataBox/Themes/Fluent.axaml"/>
+ <StyleInclude Source="avares://Avalonia.Controls.TreeDataGrid/Themes/Fluent.axaml"/>
<StyleInclude Source="avares://Avalonia.Xaml.Interactions/Draggable/Styles.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/Themes/Base.axaml" />

MODIFY
WalletWasabi.Fluent/Styles/Themes/BaseLight.axaml
WalletWasabi.Fluent/Styles/Themes/BaseLight.axaml
<!-- Needs to be here because of dependency reason -->
<StyleInclude Source="avares://Avalonia.Controls.DataGrid/Themes/Fluent.xaml" />
<StyleInclude Source="avares://DataBox/Themes/Fluent.axaml"/>
+ <StyleInclude Source="avares://Avalonia.Controls.TreeDataGrid/Themes/Fluent.axaml"/>
<StyleInclude Source="avares://Avalonia.Xaml.Interactions/Draggable/Styles.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/Themes/Base.axaml" />

Add TreeDataGrid theme