can not change the Background Color of the LegendModifier3D

Here’s the English translation of your message:

I cannot change the Background Color of the LegendModifier3D that I’m using.
The methods I’ve tried so far are:

1.
csharp
Legend = new CustomLegendModifier3D
{
Background = new SolidColorBrush(Colors.Red)
}

2.
csharp
ControlTemplate template = new ControlTemplate(typeof(LegendModifier3D));
template.VisualTree = new FrameworkElementFactory(typeof(System.Windows.Controls.Grid));
template.VisualTree.SetValue(Border.BackgroundProperty, new SolidColorBrush(Colors.Red));
Legend.Template = template;

I’ve tried these methods, but while the background color of each TextBlock has changed, I’ve found that the background color of the container wrapping the TextBlocks doesn’t change no matter what method I use.

I’m inquiring whether it’s impossible to completely change the background color of the LegendModifier3D container when using LegendModifier3D, or if I’m using the wrong method.