Bug 193886 NPE is thrown when preview external CSS style in ppt[1205]
engine/org.eclipse.birt.report.engine.emitter.ppt/src/org/eclipse/birt/report/engine/emitter/ppt/PPTRender.java
{
		if ( text == null )
		{
			return;
		}
		IStyle style = text.getStyle( );
		assert style != null;
		
		
		textX += text.getFontInfo( ).getFontSize( ) * hTextSpace;
		textY += text.getFontInfo( ).getFontSize( ) * vTextSpace;
		
		
		
		
		
		
		
		
		
		Color color = PropertyUtil.getColor( style.getProperty( StyleConstants.STYLE_COLOR ) );
		FontInfo fi = text.getFontInfo( );
		
		CSSValueList fontFamilies = (CSSValueList) style.getProperty( StyleConstants.STYLE_FONT_FAMILY );
		String red = Integer.toHexString( color.getRed( ) );
		String green = Integer.toHexString( color.getGreen( ) );
		String blue = Integer.toHexString( color.getBlue( ) );
		red = red.length( ) == 1 ? "0" + red : red; 
		green = green.length( ) == 1 ? "0" + green : green; 
		blue = blue.length( ) == 1 ? "0" + blue : blue;