iv.firstChild) {
            div.removeChild(div.firstChild);
        }
        npH1Redraw(div, currentDesc)
    }

    function buildNewKeyFromMessage(message) {
        const
            xArr = message.keypoints.map(v=>v[0]),
            yArr = message.keypoints.map(v=>v[1]),
            minX = Math.round(Math.min(...xArr)),
            minY = Math.round(Math.min(...yArr)),
            maxX = Math.round(Math.max(...xArr)),
            maxY = Math.round(Math.max(...yArr))
        ;
        return `${messag