30 lines (29 with data), 835 Bytes
<workset>
<frame image="testimage.png">
<section color="blue">
<point y="0.000000" x="0.000000"/>
<point y="2.000000" x="1.000000"/>
<point y="12.000000" x="4.000000"/>
</section>
<section color="yellow">
<point y="2.000000" x="1.000000"/>
<point y="3.000000" x="2.000000"/>
<point y="2.000000" x="5.000000"/>
</section>
</frame>
<frame image="testimage2.png">
<section color="green">
<point y="0.400000" x="0.200000"/>
<point y="2.400000" x="1.200000"/>
<point y="12.400000" x="4.200000"/>
</section>
<section color="red">
<point y="1.000000" x="1.000000"/>
<point y="1.500000" x="2.000000"/>
<point y="2.000000" x="1.700000"/>
</section>
</frame>
<frame image="testimage2.png">
<placeholder/>
</frame>
</workset>