Input text not visible with Universal's dark theme

import QtQuick 2.5
import QtQuick.Window 2.0
import QtQuick.Controls 2.0
import QtQuick.Controls.Universal 2.0

Window {
    width: 400
    height: 400
    visible: true

    TextArea {
        id: messageField
        placeholderText: qsTr("Compose message")
        wrapMode: TextArea.Wrap
        Universal.theme: Universal.Dark
    }
}