Bug 295981 [Forms] FormImages & FormFonts are not disposed correctly
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/Section.java
Assert.isTrue(descriptionControl != null
				&& descriptionControl.getParent().equals(this));
		this.descriptionControl = descriptionControl;
	}
	/**
	 * Sets the color of the title bar border when TITLE_BAR style is used.
	 * 
	 * @param color
	 *            the title bar border color
	 */
	public void setTitleBarBorderColor(Color color) {
		putTitleBarColor(COLOR_BORDER, color);
	}
	/**
	 * Sets the color of the title bar background when TITLE_BAR style is used.
	 * This color is used as a starting color for the vertical gradient.
	 * 
	 * @param color
	 *            the title bar border background
	 */
	public void setTitleBarBackground(Color color) {
		putTitleBarColor(COLOR_BG, color);
	}
	/**
	 * Sets the color of the title bar gradient background when TITLE_BAR style
	 * is used. This color is used at the height where title controls end
	 * (toggle, tool bar).
	 * 
	 * @param color
	 *            the title bar gradient background