diff --git a/examples/widget/widget.cpp b/examples/widget/widget.cpp
index 7dcd019..8840ccc 100644
--- a/examples/widget/widget.cpp
+++ b/examples/widget/widget.cpp
@@ -120,12 +120,13 @@ void Widget::updateStyleSheet()
 {
     const bool dark = Utils::shouldAppsUseDarkMode();
     const QColor clockLabelTextColor = (dark ? kDefaultWhiteColor : kDefaultBlackColor);
-    m_clockLabel->setStyleSheet(FRAMELESSHELPER_STRING_LITERAL("color: %1;").arg(clockLabelTextColor.name()));
+    m_clockLabel->setStyleSheet(FRAMELESSHELPER_STRING_LITERAL("background-color: transparent; color: %1;")
+                 .arg(clockLabelTextColor.name()));
     if (FramelessWidgetsHelper::get(this)->isBlurBehindWindowEnabled()) {
-        setStyleSheet(FRAMELESSHELPER_STRING_LITERAL("background-color: transparent"));
+        setStyleSheet(FRAMELESSHELPER_STRING_LITERAL("background-color: transparent;"));
     } else {
         const QColor windowBackgroundColor = (dark ? kDefaultSystemDarkColor : kDefaultSystemLightColor);
-        setStyleSheet(FRAMELESSHELPER_STRING_LITERAL("background-color: %1").arg(windowBackgroundColor.name()));
+        setStyleSheet(FRAMELESSHELPER_STRING_LITERAL("background-color: %1;").arg(windowBackgroundColor.name()));
     }
     update();
 }
diff --git a/src/core/micamaterial.cpp b/src/core/micamaterial.cpp
index 02eb42a..e7afb8a 100644
--- a/src/core/micamaterial.cpp
+++ b/src/core/micamaterial.cpp
@@ -60,6 +60,8 @@ static constexpr const qreal kDefaultTintOpacity = 0.7;
 static constexpr const qreal kDefaultNoiseOpacity = 0.04;
 static constexpr const qreal kDefaultBlurRadius = 128.0;
 
+static Q_CONSTEXPR2 const QColor kDefaultSystemLightColor2 = {243, 243, 243}; // #F3F3F3
+
 FRAMELESSHELPER_STRING_CONSTANT2(NoiseImageFilePath, ":/org.wangwenx190.FramelessHelper/resources/images/noise.png")
 
 struct MicaMaterialData
@@ -547,7 +549,7 @@ void MicaMaterialPrivate::updateMaterialBrush()
     initResource();
     static const QImage noiseTexture = QImage(kNoiseImageFilePath);
     QImage micaTexture = QImage(QSize(64, 64), QImage::Format_ARGB32_Premultiplied);
-    QColor fillColor = (Utils::shouldAppsUseDarkMode() ? kDefaultSystemDarkColor : kDefaultSystemLightColor);
+    QColor fillColor = (Utils::shouldAppsUseDarkMode() ? kDefaultSystemDarkColor : kDefaultSystemLightColor2);
     fillColor.setAlphaF(0.9f);
     micaTexture.fill(fillColor);
     QPainter painter(&micaTexture);