VideoPlayer/src/qml/UIComponents/SettingsButton.qml

import QtQuick 2.11
import QtQuick.Controls 2.4
import QtQuick.Dialogs 1.3
import QtQuick.Layouts 1.11
import QtQuick.Window 2.11
import Qt.labs.settings 1.0
import Qt.labs.platform 1.0 as LabsPlatform
import player 1.0

Button {
    id: settingsButton
    //icon.name: "settings"
    icon.source: "icons/" + appearance.themeName + "/settings.svg"
    hoverEnabled: true
    icon.color: hovered ? getAppearanceValueForTheme(
                              appearance.themeName,
                              "buttonHoverColor") : getAppearanceValueForTheme(
                              appearance.themeName, "buttonColor")
    Layout.alignment: Qt.AlignVCenter | Qt.AlignRight
    display: AbstractButton.IconOnly

    onClicked: {
        var aptn = appearance.themeName
        appearance.themeName = aptn == "YouTube" ? "RoosterTeeth" : aptn
                                                   == "RoosterTeeth" ? "Niconico" : "YouTube"
    }
    background: Item {
    }
}