QML FileDialog doesn't look correct with dark system theme

When using the QML FileDialog, it shows as expected when using a light system theme. When using a dark system theme however, it doesn't look correct and is almost impossible to use.
This is not an issue when using QtWidgets and QFileDialog.
Attachments shows the QML file dialog using a light and dark theme as well as using a dark theme with QFileDialog (from Qt.labs.platform).

Example (qml):

FileDialog {
	id: fileDialog
	title: "File Dialog"
}
Button {
	text: "Open File Dialog"
	onClicked: {
		fileDialog.visible = true
	}
}