small changes and the beginning of a TextBackground.qml

src/qml/presenter/TextBackground.qml

@@ -0,0 +1,20 @@
+import QtQuick 2.13
+
+Rectangle {
+    // Used for 
+    property var control
+    property bool errorCondition
+
+    color: Kirigami.Theme.backgroundColor
+    implicitWidth: parent.width
+    implicitHeight: parent.height
+    radius: 10
+    border.color: {
+        if (control.enabled)
+            return Kirigami.Theme.highlightColor
+        else if (errorCondition)
+            return Kirigami.Theme.negativeTextColor
+        else
+            return Kirigami.Theme.positiveColor
+    }
+}