Bug 127070 SVG small font is always antialiased
SVG uses glyphs to render fonts, which cause small fonts to be always anti-aliased (making them slightly blurry), and "low quality SVG" (no antialiasing) text to be almost unreadable. As a more minor side-effect this also causes the SVG source to be not very readable and large in size.
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGRendererImpl.java
Shape innerArc = new Arc2D.Double( are.getTopLeft( ).getX( )
						+ ( are.getWidth( ) - 2 * are.getInnerRadius( ) )
						/ 2,
						are.getTopLeft( ).getY( )
								+ ( are.getHeight( ) - 2 * are.getInnerRadius( ) )
								/ 2,
						2 * are.getInnerRadius( ),
						2 * are.getInnerRadius( ),
						are.getStartAngle( ),
						are.getAngleExtent( ),
						Arc2D.PIE );
				Area fArea = new Area( outerArc );
				fArea.exclusiveOr( new Area( innerArc ) );
				elm = svggc.createGeneralPath( fArea );
			}
			else
			{
				elm = svggc.createGeneralPath( new Arc2D.Double( are.getTopLeft( ).getX( ),
						are.getTopLeft( ).getY( ),
						are.getWidth( ),
						are.getHeight( ),
						are.getStartAngle( ),
						are.getAngleExtent( ),
						toSwingArcType( are.getStyle( ) ) ) );
			}
			
		}