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
super(parent, style);
}
void init(int style) {
	super.init(style);
	RGB exteriorKeyLineRGB = new RGB(201,200, 204);
	RGB interiorKeyLineRGB = new RGB(208, 207, 212);
	
	exteriorKeyLineColor = new Color(getDisplay(), exteriorKeyLineRGB);
	interiorKeyLineColor = new Color(getDisplay(), interiorKeyLineRGB);
	unselectedTabBackgroundColor = getBackground();
}
public Color getUnselectedTabBackgroundColor() {
	return unselectedTabBackgroundColor;
}
public void setUnselectedTabBackgroundColor(Color color) {
	this.unselectedTabBackgroundColor = color;
}
public void dispose() {
	super.dispose();
	
	if(exteriorKeyLineColor != null) {
		exteriorKeyLineColor.dispose();
		exteriorKeyLineColor = null;
	}
	if(interiorKeyLineColor != null) {
		interiorKeyLineColor.dispose();
		interiorKeyLineColor = null;
	}
	if(unselectedTabBackgroundColor != null) {
		unselectedTabBackgroundColor.dispose();