Supply chain — arrow flow

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    { "id":"cus","type":"actor","label":"Customer","x":1320,"y":160 },
    { "id":"sla1","type":"ribbon","label":"7 days","x":400,"y":300,"fill":"#fde68a" },
    { "id":"sla2","type":"ribbon","label":"3 days","x":760,"y":300,"fill":"#fde68a" },
    { "id":"sla3","type":"ribbon","label":"24 h","x":1120,"y":300,"fill":"#fde68a" }
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