wheel {
  background: alpha(currentColor, .08);
  border-radius: 100%;
  margin: 60px;
  min-width: 300px;
  min-height: 300px;
}

wheel > button {
  background-color: @window_bg_color;
  border: 1px solid @borders;
  padding: 3px;
}

wheel > button.playing {
  background-color: @accent_bg_color;
  color: @accent_fg_color;
}