Bug 295981 [Forms] FormImages & FormFonts are not disposed correctly
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/Section.java
* Returns the control that is used as a separator betweeen the title and
	 * the client, or <samp>null </samp> if not set.
	 * 
	 * @return separator control or <samp>null </samp> if not set.
	 */
	public Control getSeparatorControl() {
		return separator;
	}
	/**
	 * Sets the background of the section.
	 * 
	 * @param bg
	 *            the new background
	 */
	public void setBackground(Color bg) {
		super.setBackground(bg);
		if (descriptionControl != null
				&& (getExpansionStyle() & DESCRIPTION) != 0)
			descriptionControl.setBackground(bg);
	}
	/**
	 * Sets the foreground of the section.
	 * 
	 * @param fg
	 *            the new foreground.
	 */
	public void setForeground(Color fg) {
		super.setForeground(fg);
		if (descriptionControl != null
				&& (getExpansionStyle() & DESCRIPTION) != 0)