essed" a required property, as QQuickPageIndicator doesn't create // the delegates, and so it can't set it as an initial property. opacity: index === control.currentIndex ? 0.95 : pressed ? 0.7 : 0.45 required property int index Behavior on opacity { OpacityAnimator { duration: 100 } } } contentItem: Row { spacing: control.spacing Repeater { model: control.count delegate: control.delegate } } }