Fusion Style

The Fusion style is a desktop-oriented style.

The Fusion style is a platform-agnostic style that offers a desktop-oriented look and feel. It implements the same design language as the Fusion style for Qt Widgets.

The Fusion style automatically switches dark and light themes according to the system settings. For information on how to set custom theme colors, refer to the Customization section.

To run an application with the Fusion style, see Using Styles in Qt Quick Controls.

Customization

The Fusion style uses the standard system Palette to provide colors that match the desktop environment.

You can specify custom palettes for any control, popup, or application window. Explicit palette attributes are automatically propagated from parent to children, overriding any system defaults for that attribute. In the following example, the window and all three switches appear with a violet highlight color:

import QtQuick 2.12
import QtQuick.Controls 2.12

ApplicationWindow {
    visible: true

    palette.highlight: "violet"

    Column {
        anchors.centerIn: parent

        Switch { text: qsTr("First"); checked: true }
        Switch { text: qsTr("Second"); checked: true }
        Switch { text: qsTr("Third") }
    }
}

See also Basic Style, Material Style, Universal Style

Related Information

• Styling Qt Quick Controls