Hi,

I want to recover the color of the curve for the background legend (<--- ) but any success... For the title, it's OK

Qt Code: 
  1. void Legend::updateItem( QStandardItem *item, const QwtLegendData &data )
  2. {
  3.     const QVariant titleValue = data.value( QwtLegendData::TitleRole );
  4.     const QVariant colorValue = data.value(QwtLegendData::IconRole); <---
  5.  
  6.     QwtText title;
  7.     if ( titleValue.canConvert<QwtText>() )
  8.     {
  9.         item->setText( title.text() );
  10.         title = titleValue.value<QwtText>();
  11.     }
  12.     else if ( titleValue.canConvert<QString>() )
  13.     {
  14.         title.setText( titleValue.value<QString>() );
  15.     }
  16.     item->setText( title.text() );
  17.     item->setBackground(QBrush(QColor(colorValue.Color))); <---
  18.  
  19.     const QVariant iconValue = data.value( QwtLegendData::IconRole );
  20.  
  21.     QPixmap pm;
  22.     if ( iconValue.canConvert<QPixmap>() )
  23.         pm = iconValue.value<QPixmap>();
  24.  
  25.     item->setData(pm, Qt::DecorationRole);
  26. }
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Thank you for your lights