/** Checks and answers if we should add a pseudo 3D effect. */ private boolean is3D() { if (PlasticUtils.force3D(toolBar)) return true; if (PlasticUtils.forceFlat(toolBar)) return false; return PlasticUtils.is3D(PROPERTY_PREFIX) && (HeaderStyle.from(toolBar) != null) && (BorderStyle.from(toolBar, PlasticLookAndFeel.BORDER_STYLE_KEY) != BorderStyle.EMPTY); }