Bug 283631 [CSS] ETabFolder in CTabFolder mode top/bottom keylines differ
bundles/org.eclipse.e4.ui.widgets/src/org/eclipse/e4/ui/widgets/ETabFolder.java
unselectedTabBackgroundColor = null;
	}
}
public boolean getWebbyStyle() {
	return webbyStyle;
}
public void setWebbyStyle(boolean webbyStyle) {
	checkWidget();
	this.webbyStyle = webbyStyle;
	layout();
	redrawTabs();
	redraw();
	if(this.webbyStyle != webbyStyle) {
		this.webbyStyle = webbyStyle;
		updateTabHeight(true);
		if(webbyStyle && single) {
			setSingle(false); 
			return; 
		}
		Rectangle rectBefore = getClientArea();
		updateItems();
		Rectangle rectAfter = getClientArea();
		if (!rectBefore.equals(rectAfter)) {
			notifyListeners(SWT.Resize, new Event());
		}
		redraw();
	}
}
int getTextMidline() {
	return (tabHeight - topMargin - selectionMargin) /2 + topMargin + selectionMargin;