diff --git a/lib/src/utils/PrimitiveUtils.cpp b/lib/src/utils/PrimitiveUtils.cpp
index f1ac98e..d7e7eba 100644
--- a/lib/src/utils/PrimitiveUtils.cpp
+++ b/lib/src/utils/PrimitiveUtils.cpp
@@ -13,6 +13,7 @@
 #include <QPaintDevice>
 #include <QPainter>
 #include <QPainterPath>
+#include <QPixmapCache>
 #include <QWindow>
 #include <QApplication>
 
@@ -1365,7 +1366,20 @@ QPixmap getPixmap(
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
   return icon.pixmap(getWindow(widget), iconSize, iconMode, iconState);
 #else
-  return icon.pixmap(iconSize, widget ? widget->devicePixelRatio() : qApp->devicePixelRatio(), iconMode, iconState);
+  const auto devicePixelRatio = widget ? widget->devicePixelRatio() : qApp->devicePixelRatio();
+  if (devicePixelRatio <= 1.0) {
+    return icon.pixmap(iconSize, devicePixelRatio, iconMode, iconState);
+  }
+
+  // Qt icon pixmap cache is broken when devicePixelRatio > 1.0.
+  auto pixmap = icon.pixmap(iconSize * devicePixelRatio, 1.0, iconMode, iconState);  // The 1.0 pixmap gives a stable cache key.
+  auto cacheKey = QString("qlementine_icon_pixmap_%1_%2").arg(pixmap.cacheKey()).arg(devicePixelRatio);
+  if (QPixmapCache::find(cacheKey, &pixmap)) {
+    return pixmap;
+  }
+  pixmap.setDevicePixelRatio(devicePixelRatio);  // This changes the internal cache key.
+  QPixmapCache::insert(cacheKey, pixmap);
+  return pixmap;
 #endif
 }
 
diff --git a/lib/src/widgets/IconWidget.cpp b/lib/src/widgets/IconWidget.cpp
index da90af7..be037ee 100644
--- a/lib/src/widgets/IconWidget.cpp
+++ b/lib/src/widgets/IconWidget.cpp
@@ -75,7 +75,7 @@ void IconWidget::paintEvent(QPaintEvent*) {
     return;
 
   const auto& color = palette().color(isEnabled() ? QPalette::Normal : QPalette::Disabled, QPalette::Text);
-  const auto& colorizedPixmap = autoIconColor != AutoIconColor::None ? colorizePixmap(pixmap, color) : pixmap;
+  const auto& colorizedPixmap = autoIconColor != AutoIconColor::None ? getColorizedPixmap(pixmap, color) : pixmap;
 
   QPainter p(this);
   p.setRenderHint(QPainter::Antialiasing, true);
diff --git a/lib/src/widgets/LineEdit.cpp b/lib/src/widgets/LineEdit.cpp
index 204b39d..4bafca8 100644
--- a/lib/src/widgets/LineEdit.cpp
+++ b/lib/src/widgets/LineEdit.cpp
@@ -75,7 +75,7 @@ QPixmap LineEdit::getPixmap() const {
     const auto pixmap = qlementine::getPixmap(_icon, iconSize, MouseState::Normal, CheckState::NotChecked, this);
     const auto colorGroup = isEnabled() ? QPalette::ColorGroup::Normal : QPalette::ColorGroup::Disabled;
     const auto& color = palette().color(colorGroup, QPalette::ColorRole::Text);
-    const auto colorizedPixmap = qlementine::colorizePixmap(pixmap, color);
+    const auto colorizedPixmap = qlementine::getColorizedPixmap(pixmap, color);
     return colorizedPixmap;
   } else {
     const auto mouse = isEnabled() ? MouseState::Normal : MouseState::Disabled;
diff --git a/lib/src/widgets/Switch.cpp b/lib/src/widgets/Switch.cpp
index 5815dab..4987dfa 100644
--- a/lib/src/widgets/Switch.cpp
+++ b/lib/src/widgets/Switch.cpp
@@ -87,8 +87,8 @@ void Switch::paintEvent(QPaintEvent*) {
   // Draw icon.
   const auto extent = iconSize.height();
   if (hasIcon && availableW >= extent) {
-    const auto pixmap = icon().pixmap(extent, QIcon::Mode::Normal, QIcon::State::On);
-    const auto coloredPixmap = colorizePixmap(pixmap, textColor);
+    const auto pixmap = qlementine::getPixmap(icon(), {extent, extent}, MouseState::Normal, CheckState::Checked, this);
+    const auto coloredPixmap = getColorizedPixmap(pixmap, textColor);
     const auto iconX = availableX;
     const auto iconY = contentRect.y() + (contentRect.height() - extent) / 2;
     const auto iconRect = QRect{ iconX, iconY, extent, extent };