diff --git a/src/common/QskBoxBorderColors.cpp b/src/common/QskBoxBorderColors.cpp
index 1b940215..c0a92f6e 100644
--- a/src/common/QskBoxBorderColors.cpp
+++ b/src/common/QskBoxBorderColors.cpp
@@ -12,6 +12,9 @@
 static void qskRegisterBoxBorderColors()
 {
     qRegisterMetaType< QskBoxBorderColors >();
+
+    QMetaType::registerConverter< QColor, QskBoxBorderColors >(
+        []( const QColor& color ) { return QskBoxBorderColors( color ); } );
 }
 
 Q_CONSTRUCTOR_FUNCTION( qskRegisterBoxBorderColors )
diff --git a/src/common/QskBoxBorderMetrics.cpp b/src/common/QskBoxBorderMetrics.cpp
index 63e4622a..09d6138f 100644
--- a/src/common/QskBoxBorderMetrics.cpp
+++ b/src/common/QskBoxBorderMetrics.cpp
@@ -11,6 +11,15 @@
 static void qskRegisterBoxBorderMetrics()
 {
     qRegisterMetaType< QskBoxBorderMetrics >();
+
+    QMetaType::registerConverter< QskMargins, QskBoxBorderMetrics >(
+        []( const QskMargins& margins ) { return QskBoxBorderMetrics( margins ); } );
+
+    QMetaType::registerConverter< int, QskBoxBorderMetrics >(
+        []( int width ) { return QskBoxBorderMetrics( width ); } );
+
+    QMetaType::registerConverter< qreal, QskBoxBorderMetrics >(
+        []( qreal width ) { return QskBoxBorderMetrics( width ); } );
 }
 
 Q_CONSTRUCTOR_FUNCTION( qskRegisterBoxBorderMetrics )
diff --git a/src/common/QskBoxShapeMetrics.cpp b/src/common/QskBoxShapeMetrics.cpp
index 0147cf17..f80261c5 100644
--- a/src/common/QskBoxShapeMetrics.cpp
+++ b/src/common/QskBoxShapeMetrics.cpp
@@ -13,6 +13,12 @@
 static void qskRegisterBoxShapeMetrics()
 {
     qRegisterMetaType< QskBoxShapeMetrics >();
+
+    QMetaType::registerConverter< int, QskBoxShapeMetrics >(
+        []( int radius ) { return QskBoxShapeMetrics( radius ); } );
+
+    QMetaType::registerConverter< qreal, QskBoxShapeMetrics >(
+        []( qreal radius ) { return QskBoxShapeMetrics( radius ); } );
 }
 
 Q_CONSTRUCTOR_FUNCTION( qskRegisterBoxShapeMetrics )
diff --git a/src/common/QskGradient.cpp b/src/common/QskGradient.cpp
index 11f32af6..21d12da6 100644
--- a/src/common/QskGradient.cpp
+++ b/src/common/QskGradient.cpp
@@ -15,6 +15,9 @@ static void qskRegisterGradient()
 {
     qRegisterMetaType< QskGradient >();
     qRegisterMetaType< QskGradientStop >();
+
+    QMetaType::registerConverter< QColor, QskGradient >(
+        []( const QColor& color ) { return QskGradient( color ); } );
 }
 
 Q_CONSTRUCTOR_FUNCTION( qskRegisterGradient )
diff --git a/src/common/QskMetaInvokable.cpp b/src/common/QskMetaInvokable.cpp
index ccfa9195..8630bbdd 100644
--- a/src/common/QskMetaInvokable.cpp
+++ b/src/common/QskMetaInvokable.cpp
@@ -16,6 +16,13 @@ QSK_QT_PRIVATE_BEGIN
 #include <private/qobject_p.h>
 QSK_QT_PRIVATE_END
 
+static void qskRegisterMetaInvokable()
+{
+    qRegisterMetaType< QskMetaInvokable >();
+}
+    
+Q_CONSTRUCTOR_FUNCTION( qskRegisterMetaInvokable )
+
 static inline void *qskMetaTypeCreate( int type, const void *copy )
 {
 #if QT_VERSION >= QT_VERSION_CHECK( 6, 0, 0 )