Bug 179431 [Automation]Chart background color issue[0602]
Details: [Automation]Chart background color issue[0602] Step: 1. Add a chart and set output format as jpg/bmp. 2. Add a chart and set output format as png/svg. Actual result: Step 1: Background color of chart is baby blue. Step 2: Background color of chart is black.
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/image/JavaxImageIOWriter.java
* @see java.awt.image.BufferedImage#TYPE_INT_BGR
	 * @see java.awt.image.BufferedImage#TYPE_3BYTE_BGR
	 * @see java.awt.image.BufferedImage#TYPE_4BYTE_ABGR
	 * @see java.awt.image.BufferedImage#TYPE_4BYTE_ABGR_PRE
	 * @see java.awt.image.BufferedImage#TYPE_BYTE_GRAY
	 * @see java.awt.image.BufferedImage#TYPE_USHORT_GRAY
	 * @see java.awt.image.BufferedImage#TYPE_BYTE_BINARY
	 * @see java.awt.image.BufferedImage#TYPE_BYTE_INDEXED
	 * @see java.awt.image.BufferedImage#TYPE_USHORT_565_RGB
	 * @see java.awt.image.BufferedImage#TYPE_USHORT_555_RGB
	 * 
	 * @return
	 */
	protected abstract int getImageType( );
	JavaxImageIOWriter( )
	{
		
		ImageIO.setUseCache( false );
	}
	/**
	 * Updates the writer's parameters.
	 * 
	 * @param iwp
	 */
	protected void updateWriterParameters( ImageWriteParam iwp )
	{
		
	}
	/*
	 * (non-Javadoc)