Predefined Graphics Objects
<rect x="0" y="0" rx="5" ry="5" width="40" height="20"/>
<circle cx="200" cy="200" r="100" />
<ellipse cx="200" cy="200" rx="100" ry="60" />
<polyline points="20,20 50,100 200,80 70,300" />
<polygon points="20,20 50,100 200,80 70,300" />
<line x1="10" y1="20" x2="15" y2="7" />
- Rectangles can have rounded corners
- Polygons have last point connected to first
