Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
64,
			64,
			127 );
	/**
	 * Internally used to brighten a tiled image with a translucent light grey
	 * color
	 */
	protected static final ColorDefinition LIGHT_GLASS = ColorDefinitionImpl.create( 196,
			196,
			196,
			127 );
	/**
	 * Transparency for translucent color. Should between 0 and 100.
	 */
	protected static double OVERRIDE_TRANSPARENCY = 50;
	/**
	 * The associated runtimeContext.
	 */
	protected transient RunTimeContext rtc = null;
	
	
	protected DeferredCacheManager fDeferredCacheManager;
	private static ILogger logger = Logger.getLogger( "org.eclipse.birt.chart.engine/render" ); 
	/**
	 * The internal constructor that must be defined as public
	 * 
	 * @param _ir
	 * @param _cm
	 */
	public BaseRenderer( )