private void button1_Click(object sender, RoutedEventArgs e)
{
// creates a new fern when the draw button is clicked
Fern f = new Fern(sizeSlider.Value, thickSlider.Value, biasSlider.Value, canvas);
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
// creates a new fern when the program is started
Fern f = new Fern(sizeSlider.Value, thickSlider.Value, biasSlider.Value, canvas);
}