QML Controls on Drawer/ToolBar don't inherit the system style(including Universal and Material).

code-snippet below can be used to reproduce the issue. Try to change the theme and accent, background, foreground, the label won't be changed according to the window settings.

ApplicationWindow {
id: window
visible: true 
Universal.theme: Universal.Dark
Universal.accent: Universal.Violet
Drawer {
id: drawer
width: 0.66 * window.width
height: window.height 
Label

}
}