QML TextField QuickControls2 - placeholderText is almost transparent when background is black

import QtQuick 2.9
import QtQuick.Controls 2.3

ApplicationWindow {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    TextField {
        id: textField
        width: 200
        height: 50
        anchors.centerIn: parent
        color: "white"
        placeholderText: "Search..."
        background: Rectangle {
            anchors.fill: parent
            color: "black"
        }
    }
}