QVariant QDeclarativeStringConverters::variantFromString(const QString &s)
{
    if (s.isEmpty())
        return QVariant(s);
    bool ok = false;
    QRectF r = rectFFromString(s, &ok);
    if (ok) return QVariant(r);
    QColor c = colorFromString(s, &ok);           <--- this will trigger a warning if the string does not start with # and is not a color name
    if (ok) return QVariant(c);
    QPointF p = pointFFromString(s, &ok);
    if (ok) return QVariant(p);
    QSizeF sz = sizeFFromString(s, &ok);
    if (ok) return QVariant(sz);
    QVector3D v = vector3DFromString(s, &ok);
    if (ok) return qVariantFromValue(v);

    return QVariant(s);
}