public object Convert(object value, Type targetType, object parameter, string language)
{
WSolidColorBrush brush = null;
var element = value as FrameworkElement;
if (element != null)
{
while (brush == null && element != null)
{
DependencyProperty property = GetBackgroundProperty(element);
if (property != null)
{
value = element.GetValue(property);
brush = value as WSolidColorBrush;
if (brush != null && brush.Color == Colors.Transparent)
{
brush = null;
}
}
element = VisualTreeHelper.GetParent(element) as FrameworkElement;
}
}
brush = value as WSolidColorBrush;
if (brush != null)
{
Maui.Graphics.Color color = brush.ToFormsColor();
double delta = Shift;
if (color.GetLuminosity() > .6)
{
delta = -Shift;
}
color = color.AddLuminosity((float)delta);
return(new WSolidColorBrush(color.ToWindowsColor()));
}
return(null);
}
