Window < UIWindow
  font: helvetica-12px-bold
  size: 200 200
  opacity: 255
  background-color: white
  head height: 20
  head text align: center
  border-image:
    source: /core_ui/images/window.png
    border: 4
    border.top: 20

  state.pressed:
    opacity: 192

MainWindow < Window
  anchors.centerIn: parent