diff --git a/src/common/QskArcMetrics.cpp b/src/common/QskArcMetrics.cpp
index a7981827..596c0bff 100644
--- a/src/common/QskArcMetrics.cpp
+++ b/src/common/QskArcMetrics.cpp
@@ -48,7 +48,7 @@ void QskArcMetrics::setSpanAngle( qreal spanAngle ) noexcept
 
 void QskArcMetrics::setSizeMode( Qt::SizeMode sizeMode ) noexcept
 {
-    m_sizeMode = sizeMode;
+    m_relativeSize = ( sizeMode == Qt::RelativeSize );
 }
 
 bool QskArcMetrics::isClosed() const
@@ -79,7 +79,7 @@ bool QskArcMetrics::containsAngle( qreal angle ) const
 QskArcMetrics QskArcMetrics::interpolated(
     const QskArcMetrics& to, qreal ratio ) const noexcept
 {
-    if ( ( *this == to ) || ( m_sizeMode != to.m_sizeMode ) )
+    if ( ( *this == to ) || ( m_relativeSize != to.m_relativeSize ) )
         return to;
 
     const qreal thickness = qskInterpolated( m_thickness, to.m_thickness, ratio );
@@ -87,7 +87,7 @@ QskArcMetrics QskArcMetrics::interpolated(
     const qreal s1 = qskInterpolated( m_startAngle, to.m_startAngle, ratio );
     const qreal s2 = qskInterpolated( endAngle(), to.endAngle(), ratio );
 
-    return QskArcMetrics( s1, s2 - s1, thickness, m_sizeMode );
+    return QskArcMetrics( s1, s2 - s1, thickness, sizeMode() );
 }
 
 QVariant QskArcMetrics::interpolate(
@@ -97,6 +97,11 @@ QVariant QskArcMetrics::interpolate(
     return QVariant::fromValue( from.interpolated( to, progress ) );
 }
 
+QskArcMetrics QskArcMetrics::toAbsolute( const QSizeF& size ) const noexcept
+{
+    return toAbsolute( 0.5 * size.width(), 0.5 * size.height() );
+}
+
 QskArcMetrics QskArcMetrics::toAbsolute( qreal radiusX, qreal radiusY ) const noexcept
 {
     if ( radiusX < 0.0 )
@@ -110,7 +115,7 @@ QskArcMetrics QskArcMetrics::toAbsolute( qreal radiusX, qreal radiusY ) const no
 
 QskArcMetrics QskArcMetrics::toAbsolute( qreal radius ) const noexcept
 {
-    if ( m_sizeMode != Qt::RelativeSize )
+    if ( !m_relativeSize )
         return *this;
 
     const qreal t = qskEffectiveThickness( radius, m_thickness );
@@ -122,7 +127,7 @@ QPainterPath QskArcMetrics::painterPath( const QRectF& ellipseRect ) const
     const auto sz = qMin( ellipseRect.width(), ellipseRect.height() );
 
     qreal t = m_thickness;
-    if ( m_sizeMode == Qt::RelativeSize )
+    if ( m_relativeSize )
         t = qskEffectiveThickness( 0.5 * sz, t );
 
     if ( t <= 0.0 || qFuzzyIsNull( m_spanAngle ) )
@@ -212,8 +217,7 @@ QskHashValue QskArcMetrics::hash( QskHashValue seed ) const noexcept
     hash = qHash( m_startAngle, hash );
     hash = qHash( m_spanAngle, hash );
 
-    const int mode = m_sizeMode;
-    return qHashBits( &mode, sizeof( mode ), hash );
+    return qHash( m_relativeSize, hash );
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/common/QskArcMetrics.h b/src/common/QskArcMetrics.h
index fe80ed46..5424d35d 100644
--- a/src/common/QskArcMetrics.h
+++ b/src/common/QskArcMetrics.h
@@ -58,6 +58,7 @@ class QSK_EXPORT QskArcMetrics
     QskArcMetrics interpolated( const QskArcMetrics&,
         qreal value ) const noexcept;
 
+    QskArcMetrics toAbsolute( const QSizeF& ) const noexcept;
     QskArcMetrics toAbsolute( qreal radiusX, qreal radiusY ) const noexcept;
     QskArcMetrics toAbsolute( qreal radius ) const noexcept;
 
@@ -76,7 +77,8 @@ class QSK_EXPORT QskArcMetrics
     qreal m_spanAngle = 0.0;
 
     qreal m_thickness = 0.0;
-    Qt::SizeMode m_sizeMode = Qt::AbsoluteSize;
+
+    bool m_relativeSize = false;
 };
 
 inline constexpr QskArcMetrics::QskArcMetrics(
@@ -85,23 +87,22 @@ inline constexpr QskArcMetrics::QskArcMetrics(
 {
 }
 
-inline constexpr QskArcMetrics::QskArcMetrics(
-        qreal startAngle, qreal spanAngle,
+inline constexpr QskArcMetrics::QskArcMetrics( qreal startAngle, qreal spanAngle,
         qreal thickness, Qt::SizeMode sizeMode ) noexcept
     : m_startAngle( startAngle )
     , m_spanAngle( spanAngle )
     , m_thickness( thickness )
-    , m_sizeMode( sizeMode )
+    , m_relativeSize( sizeMode == Qt::RelativeSize )
 {
 }
 
 inline bool QskArcMetrics::operator==(
     const QskArcMetrics& other ) const noexcept
 {
-    return ( qskFuzzyCompare( m_thickness, other.m_thickness )
+    return qskFuzzyCompare( m_thickness, other.m_thickness )
         && qskFuzzyCompare( m_startAngle, other.m_startAngle )
         && qskFuzzyCompare( m_spanAngle, other.m_spanAngle )
-        && m_sizeMode == other.m_sizeMode );
+        && ( m_relativeSize == other.m_relativeSize );
 }
 
 inline bool QskArcMetrics::operator!=(
@@ -142,7 +143,7 @@ inline constexpr qreal QskArcMetrics::angleAtRatio( qreal ratio ) const noexcept
 
 inline constexpr Qt::SizeMode QskArcMetrics::sizeMode() const noexcept
 {
-    return m_sizeMode;
+    return m_relativeSize ? Qt::RelativeSize : Qt::AbsoluteSize;
 }
 
 #ifndef QT_NO_DEBUG_STREAM