Bug 168837 The gradient with transparent color does not work [0001]
Description: The background gradient color does not work. Build number: 2.1.2.v20061221-0710 Steps to reproduce: 1. Preview the attached design file. Expected result: Background gradient color both work when preview and in Layout. Actual result: Background gradient color does not work when preview but work in Layout. Error log: N/A
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGGraphics2D.java
element.setAttribute("id", id); 
		if (( clip != null ) && (!deferClipped))
			element.setAttribute( "clip-path", "url(#clip" + clip.hashCode( ) + ")" ); 
		
	}
	/**
	 * @returns the color definition in a string with the format: #RRGGBBAA:
	 *          RRGGBB are the color components in hexa in the range 00..FF AA
	 *          is the tranparency value in hexa in the range 00..FF ex: Solid
	 *          light gray : #777777
	 */
	protected String serializeToString( Color color )
	{
		String r = Integer.toHexString( color.getRed( ) );
		if ( color.getRed( ) <= 0xF )
			r = "0" + r; 
		String g = Integer.toHexString( color.getGreen( ) );
		if ( color.getGreen( ) <= 0xF )
			g = "0" + g; 
		String b = Integer.toHexString( color.getBlue( ) );
		if ( color.getBlue( ) <= 0xF )
			b = "0" + b; 
		String ret = "#" + r + g + b; 
		return ret;
	}
	protected String alphaToString( Color color )
	{
		double a = 1;
		if ( color.getAlpha( ) < 0xFF )
		{