diff --git a/qml/TestRow.qml b/qml/TestRow.qml
index d23ea41..dae87ff 100644
--- a/qml/TestRow.qml
+++ b/qml/TestRow.qml
@@ -7,30 +7,57 @@ import QtQuick.Window 2.11
 import QtQuick.Controls.Styles 1.4
 import QtQuick.Controls 1.4
 
-
-RowLayout {
+ColumnLayout {
 	id: sec
-	property int base: 10
+	property real realbase: 10.0
+	property int intbase: realbase
 
-	Text {
-		font.pointSize: sec.base
-		text: "pointSize: " + font.pointSize
+	RowLayout {
+		Text {
+			font.pointSize: sec.intbase
+			text: "int pointSize: " + sec.intbase
+		}
+
+		TextField {
+			text: "pt" + sec.intbase + "; ptToPx("+sec.intbase+")"
+			style: TextFieldStyle {
+				id: root
+				textColor: "black"
+				font.pointSize: sec.intbase
+				property int width: 500
+
+				background: Rectangle {
+					radius: 2
+					implicitWidth: root.width
+					implicitHeight: ptToPx(sec.intbase)
+					//color: windowItem.cwtch_background_color
+					border.color: "#000000"
+				}
+			}
+		}
 	}
 
-	TextField {
-		text: "pt" + sec.base + "; ptToPx("+sec.base+")"
-		style: TextFieldStyle {
-			id: root
-			textColor: "black"
-			font.pointSize: sec.base
-			property int width: 500
+	RowLayout {
+		Text {
+			font.pointSize: sec.realbase
+			text: "real pointSize: " + sec.realbase
+		}
 
-			background: Rectangle {
-				radius: 2
-				implicitWidth: root.width
-				implicitHeight: ptToPx(sec.base)
-				//color: windowItem.cwtch_background_color
-				border.color: "#000000"
+		TextField {
+			text: "pt" + sec.realbase + "; ptToPx("+sec.realbase+")"
+			style: TextFieldStyle {
+				id: root
+				textColor: "black"
+				font.pointSize: sec.realbase
+				property int width: 500
+
+				background: Rectangle {
+					radius: 2
+					implicitWidth: root.width
+					implicitHeight: ptToPx(sec.realbase)
+					//color: windowItem.cwtch_background_color
+					border.color: "#000000"
+				}
 			}
 		}
 	}
diff --git a/qml/main.qml b/qml/main.qml
index 788e7e7..3c7ac62 100644
--- a/qml/main.qml
+++ b/qml/main.qml
@@ -26,11 +26,25 @@ ApplicationWindow {
     }
 
 	ColumnLayout {
-		Text { text: "Screen.pixelDensity: " + Screen.pixelDensity }
-		TestRow { base: 10 }
-		TestRow { base: 16 }
-		TestRow { base: 24 }
-		TestRow { base: 36 }
-		TestRow { base: 48 }
+		id: col
+		property real scale: 1.5
+
+		Text { text: "Screen.pixelDensity: " + Screen.pixelDensity + ", col.scale: " + col.scale}
+		Slider {
+			id: zoomSlider
+			minimumValue: 0.5
+			maximumValue: 4.0
+			value: col.scale
+			updateValueWhileDragging: true
+			onValueChanged: {
+				col.scale = zoomSlider.value
+			}
+			width: 400
+		}
+		TestRow { realbase: 10 * col.scale }
+		TestRow { realbase: 16 * col.scale }
+		TestRow { realbase: 24 * col.scale }
+		TestRow { realbase: 36 * col.scale }
+		TestRow { realbase: 48 * col.scale }
 	}
 }
\ No newline at end of file