message: QBrush() is not a 'use default' return value from a model, QVariant() is
diff: @@ -192,7 +192,7 @@ public:
  return widget->palette().brush(QPalette::Window);
  // otherwise, no special background
  - return QBrush();
  + return QVariant();
  }
  else if(role == Qt::ForegroundRole)
  {
  @@ -203,7 +203,7 @@ public:
  if(widget->m_currentHoverItem == item)
  return widget->palette().brush(QPalette::WindowText);
  - return QBrush();
  + return QVariant();
  }
  else if(role == Qt::ToolTipRole)
  {
  