This is my short example
<?xml version="1.0" encoding="UTF-8"?>
<chart>
<properties oxsversion="1.0" height="115" width="90" title="" author="" copyright="" instructions="" />
<palette>
<palette_item index="1" number="DMC 0" name="Black" color="000000" printcolor="000000" symbol="100" />
<palette_item index="2" number="DMC 3371" name="Black Brown" color="1F0C00" printcolor="1F0C00" symbol="1" />
<palette_item index="23" number="DMC 5200" name="White Bright (B5200)" color="FFFFFF" printcolor="FFFFFF" symbol="22" />
</palette>
<fullitemss>
<stitch x="7" y="50" palindex="1"/>
<stitch x="7" y="54" palindex="1"/>
<stitch x="7" y="55" palindex="1"/>
<stitch x="8" y="43" palindex="2"/>
<stitch x="8" y="44" palindex="1"/>
<stitch x="8" y="45" palindex="6"/>
<stitch x="13" y="61" palindex="1"/>
</fullitemss>
<partitemss/>
<comments/>
</chart>
Why do you assume you need a plugin? What doesn’t JSONItem provide that you need?
This: