An example of how to create simple graphics using SVG

<svg width="200" height="200" >
    <circle 
        cx="100" 
        cy="100" 
        r="80" 
        stroke="green" 
        stroke-width="4" 
        fill="none"/>
</svg>

<svg>
    <rect 
        x="10" 
        y="10" 
        rx="5" 
        ry="5" 
        width="150" 
        height="100" 
        stroke="red" 
        fill="none">
    </rect>
</svg>

<svg>
    <ellipse 
        cx="400" 
        cy="60" 
        rx="70" 
        ry="50" 
        stroke="red" 
        fill="none">
    </ellipse>
</svg>

<svg>
    <polygon 
        points="250 120 
                300 220
                200 220"
        stroke="red"
        stroke-width="5"
        fill="yellow"
        transform="translate(150 0)">
    </polygon>
</svg>

M = moveto
L = lineto
H = horizontal lineto
V = vertical lineto
C = curveto
S = smooth curveto
Q = quadratic Belzier curve
T = smooth quadratic Belzier curveto
A = elliptical Arc
Z = closepath

<svg>
    <path 
    d="M250 150 L150 350 L350 350 Z" />
</svg>