test.qml

import QtQuick 2.7
import QtQuick.Controls 2.1
import QtQuick.Controls.Styles 1.2

import QGroundControl.FactControls 1.0
import QGroundControl.Palette 1.0


Rectangle {
    QGCPalette { id: palette; colorGroupEnabled: enabled }

    width: 100
    height: 100
    color: "#e43f3f"
    // palette.text
}