Actually, in default IconEngine (QSvgIconEngine & QPixmapIconEngine), pixmap method generate QPixmap except for QIcon::Normal (Optimization ?).

In certain use case it's can be practice that method generate a QPixmap for QIcon::Normal mode too.

Maybe disable optimization with flag or something else, to keep actual processing by default and switch when we need full generation.

QPixmap QSvgIconEngine::pixmap(const QSize &size, QIcon::Mode mode,
                               QIcon::State state)
// ...
>if (loadmode != mode &&  (mode != QIcon::Normal || flagNormalGenerate) {
    const QPixmap generated = QGuiApplicationPrivate::instance()->applyQIconStyleHelper(mode, pm);
    if (!generated.isNull())
        pm = generated;
 }