src/Bannerlord.LauncherEx/Resources/Prefabs/Widgets/Launcher.ToggleButton.xml
<Prefab>
<Window>
<LauncherToggleButtonWidget Brush="Launcher.Mods.ModToggle" ToggleIndicator="ToggleIndicator" DoNotPassEventsToChildren="true">
<Children>
<ImageWidget Id="ToggleIndicator" WidthSizePolicy="StretchToParent" HeightSizePolicy="StretchToParent" Brush="Launcher.Mods.ModToggle.Checkmark" />
</Children>
</LauncherToggleButtonWidget>
</Window>
</Prefab>