private void EnsureMaterialized()
{
if (LazyBuilder != null)
{
var builder = LazyBuilder;
LazyBuilder = null;
builder.Invoke();
if (Storyboard is IDependencyObjectStoreProvider storyboardProvider)
{
// Set the theme changed flag on so the update processes
// the children.
storyboardProvider.Store.UpdateResourceBindings(ResourceUpdateReason.ThemeResource);
}
}
}