diff --git a/mobile-widgets/qml/Settings.qml b/mobile-widgets/qml/Settings.qml
index f4bc95db3..cc2034bc9 100644
--- a/mobile-widgets/qml/Settings.qml
+++ b/mobile-widgets/qml/Settings.qml
@@ -315,26 +315,23 @@ Kirigami.ScrollablePage {
 					spacing: Kirigami.Units.largeSpacing
 					SsrfButton {
 						text: qsTr("smaller")
-						enabled: subsurfaceTheme.currentScale !== 0.85
+						enabled: ThemeNew.currentScale !== 0.85
 						onClicked: {
-							PrefDisplay.mobile_scale = 0.85
-							fontMetrics.font.pointSize = themeNew.basePointSize * PrefDisplay.mobile_scale;
+							ThemeNew.currentScale = 0.85
 						}
 					}
 					SsrfButton {
 						text: qsTr("regular")
-						enabled: subsurfaceTheme.currentScale !== 1.0
+						enabled: ThemeNew.currentScale !== 1.0
 						onClicked: {
-							PrefDisplay.mobile_scale = 1.0
-							fontMetrics.font.pointSize = themeNew.basePointSize * PrefDisplay.mobile_scale;
+							ThemeNew.currentScale = 1.0
 						}
 					}
 					SsrfButton {
 						text: qsTr("larger")
-						enabled: subsurfaceTheme.currentScale !== 1.15
+						enabled: ThemeNew.currentScale !== 1.15
 						onClicked: {
-							PrefDisplay.mobile_scale = 1.15
-							fontMetrics.font.pointSize = themeNew.basePointSize * PrefDisplay.mobile_scale;
+							ThemeNew.currentScale = 1.15
 						}
 					}
 				}
diff --git a/mobile-widgets/qml/main.qml b/mobile-widgets/qml/main.qml
index ab9248ddf..be6cfaff2 100644
--- a/mobile-widgets/qml/main.qml
+++ b/mobile-widgets/qml/main.qml
@@ -596,10 +596,10 @@ if you have network connectivity and want to sync your data to cloud storage."),
 	QtObject {
 		id: subsurfaceTheme
 
-		property double regularPointSize: fontMetrics.font.pointSize
-		property double titlePointSize: regularPointSize * 1.5
-		property double headingPointSize: regularPointSize * 1.2
-		property double smallPointSize: regularPointSize * 0.8
+		property double regularPointSize: ThemeNew.regularPointSize
+		property double titlePointSize: ThemeNew.titlePointSize
+		property double headingPointSize: ThemeNew.headingPointSize
+		property double smallPointSize: ThemeNew.smallPointSize
 
 		// colors currently in use
 		property color darkerPrimaryColor: ThemeNew.darkerPrimaryColor
diff --git a/mobile-widgets/themeinterface.cpp b/mobile-widgets/themeinterface.cpp
index ba72bb7f7..6419ce7ec 100644
--- a/mobile-widgets/themeinterface.cpp
+++ b/mobile-widgets/themeinterface.cpp
@@ -23,7 +23,7 @@ void themeInterface::setup(QQmlContext *ct)
 	instance()->m_basePointSize = defaultModelFont().pointSize();
 
 	// set initial font size
-	defaultModelFont().setPointSize(m_basePointSize * qPrefDisplay::mobile_scale());
+	instance()->set_currentScale(qPrefDisplay::mobile_scale());
 }
 
 void themeInterface::set_currentTheme(const QString &theme)
@@ -34,6 +34,36 @@ void themeInterface::set_currentTheme(const QString &theme)
 	emit currentThemeChanged(theme);
 }
 
+double themeInterface::currentScale()
+{
+	return qPrefDisplay::mobile_scale();
+}
+void themeInterface::set_currentScale(double newScale)
+{
+	if (newScale != qPrefDisplay::mobile_scale()) {
+		qPrefDisplay::set_mobile_scale(newScale);
+		emit currentScaleChanged(qPrefDisplay::mobile_scale());
+	}
+
+	// Set current font size
+	defaultModelFont().setPointSize(m_basePointSize * qPrefDisplay::mobile_scale());
+
+	// adjust all used font sizes
+	m_regularPointSize = defaultModelFont().pointSize();
+	emit regularPointSizeChanged(m_regularPointSize);
+
+	m_headingPointSize = m_regularPointSize * 1.2;
+	emit headingPointSizeChanged(m_headingPointSize);
+
+	m_smallPointSize = m_regularPointSize * 0.8;
+	emit smallPointSizeChanged(m_smallPointSize);
+
+	m_titlePointSize = m_regularPointSize * 1.5;
+	emit titlePointSizeChanged(m_titlePointSize);
+}
+
+
+
 void themeInterface::update_theme()
 {
 	if (m_currentTheme == "Blue") {
diff --git a/mobile-widgets/themeinterface.h b/mobile-widgets/themeinterface.h
index ee6a8879c..f06d834da 100644
--- a/mobile-widgets/themeinterface.h
+++ b/mobile-widgets/themeinterface.h
@@ -25,6 +25,11 @@ class themeInterface : public QObject {
 
 	// Font
 	Q_PROPERTY(double basePointSize MEMBER m_basePointSize CONSTANT)
+	Q_PROPERTY(double headingPointSize MEMBER m_headingPointSize NOTIFY headingPointSizeChanged)
+	Q_PROPERTY(double regularPointSize MEMBER m_regularPointSize NOTIFY regularPointSizeChanged)
+	Q_PROPERTY(double smallPointSize MEMBER m_smallPointSize NOTIFY smallPointSizeChanged)
+	Q_PROPERTY(double titlePointSize MEMBER m_titlePointSize NOTIFY titlePointSizeChanged)
+	Q_PROPERTY(double currentScale READ currentScale WRITE set_currentScale NOTIFY currentScaleChanged)
 
 	// Support
 	Q_PROPERTY(QString currentTheme MEMBER m_currentTheme WRITE set_currentTheme NOTIFY currentThemeChanged)
@@ -78,6 +83,9 @@ public:
 public slots:
 	void set_currentTheme(const QString &theme);
 
+	double currentScale();
+	void set_currentScale(double);
+
 signals:
 	void backgroundColorChanged(QColor);
 	void contrastAccentColorChanged(QColor);
@@ -92,6 +100,12 @@ signals:
 	void secondaryTextColorChanged(QColor);
 	void textColorChanged(QColor);
 
+	void headingPointSizeChanged(double);
+	void regularPointSizeChanged(double);
+	void smallPointSizeChanged(double);
+	void titlePointSizeChanged(double);
+	void currentScaleChanged(double);
+
 	void currentThemeChanged(const QString &);
 
 private:
@@ -112,6 +126,10 @@ private:
 	QColor m_textColor;
 
 	double m_basePointSize;
+	double m_headingPointSize;
+	double m_regularPointSize;
+	double m_smallPointSize;
+	double m_titlePointSize;
 
 	QString m_currentTheme;
 	QString m_iconStyle;