Enlarge "speed limits" icons

And make use of QStyle pixelMetric().
PR #16630.

src/gui/optionsdialog.cpp

@@ -218,8 +218,8 @@ OptionsDialog::OptionsDialog(QWidget *parent)
 
     m_ui->IpFilterRefreshBtn->setIcon(UIThemeManager::instance()->getIcon("view-refresh"));
 
-    m_ui->labelGlobalRate->setPixmap(Utils::Gui::scaledPixmapSvg(UIThemeManager::instance()->getIconPath(QLatin1String("slow_off")), this, 24));
-    m_ui->labelAltRate->setPixmap(Utils::Gui::scaledPixmapSvg(UIThemeManager::instance()->getIconPath(QLatin1String("slow")), this, 24));
+    m_ui->labelGlobalRate->setPixmap(Utils::Gui::scaledPixmapSvg(UIThemeManager::instance()->getIconPath(QLatin1String("slow_off")), this, Utils::Gui::mediumIconSize(this).height()));
+    m_ui->labelAltRate->setPixmap(Utils::Gui::scaledPixmapSvg(UIThemeManager::instance()->getIconPath(QLatin1String("slow")), this, Utils::Gui::mediumIconSize(this).height()));
 
     m_ui->deleteTorrentWarningIcon->setPixmap(QApplication::style()->standardIcon(QStyle::SP_MessageBoxCritical).pixmap(16, 16));
     m_ui->deleteTorrentWarningIcon->hide();

src/gui/speedlimitdialog.cpp

@@ -57,9 +57,9 @@ SpeedLimitDialog::SpeedLimitDialog(QWidget *parent)
     m_ui->setupUi(this);
 
     m_ui->labelGlobalSpeedIcon->setPixmap(Utils::Gui::scaledPixmapSvg(UIThemeManager::instance()->getIconPath(QLatin1String("slow_off"))
-                                                , this, style()->pixelMetric(QStyle::PM_SmallIconSize, nullptr, this)));
+                                                , this, Utils::Gui::mediumIconSize(this).height()));
     m_ui->labelAltGlobalSpeedIcon->setPixmap(Utils::Gui::scaledPixmapSvg(UIThemeManager::instance()->getIconPath(QLatin1String("slow"))
-                                                , this, style()->pixelMetric(QStyle::PM_SmallIconSize, nullptr, this)));
+                                                , this, Utils::Gui::mediumIconSize(this).height()));
 
     const auto initSlider = [](QSlider *slider, const int value, const int maximum)
     {