QtQuick Material in secondary Window

[CliverC]

Hello, i'm new at QML and want to create a domestic alarm. I succesfully created a window with buttons and images with a Dark theme, but when i want to open a new window i can't set the same theme. I tried putting the code in a different .qml and in the same .qml. My code is like this:

@
import QtQuick 2.7
import QtQuick.Controls 2.0
import QtQuick.Controls.Material 2.0
import QtQuick.Layouts 1.3
import QtQuick.Window 2.0

ApplicationWindow {
visible: true
width: 640
height: 480
title: qsTr("Smart Home")
Material.theme: Material.Dark
Material.accent: "#004D40"

Image {
           ......
}
Rectangle {    
    ...
    AnimatedImage {
        ....
    }

    MouseArea {
        .....
    }
}

Window {
    id: ventanaprueba
    visible: true
    Material.theme: Material.Dark
    Material.accent: Material.DeepOrange
}

}
@

The window "ventanaprueba" opens but all white, when it should have a black background. I tried adding in the main.cpp file #include <QQuickStyle> and QQickStyle::setStyle("Material"); but didn't change anything.
Can someone please help me? Thanks in advance

[GrecKo]

Window isn't aware of the QQuickStyle, if you want to have a style window use ApplicationWindow.

[CliverC]

@GrecKo That was it. Thank you very much!