void (Ref<LightCalloutPopup> ref) { LightCalloutPopup popup = ref.get(); Balloon balloon = popup.getBalloon(); if (balloon instanceof BalloonImpl) { RelativePoint showingPoint = ((BalloonImpl)balloon).getShowingPoint(); Color c = popup.getPointerColor(showingPoint, ((BalloonImpl)balloon).getComponent()); if (c != null) { c = ColorUtil.withAlpha(c, 1.0); //clear transparency } ((BalloonImpl)balloon).setPointerColor(c); } }