{
const width = 960
const height = 500
const context = DOM.context2d(width, height);
context.lineCap = 'square';
context.lineWidth = lineWidth;
for (let y=0;y<height;y+=step)
for (let x=0;x<width;x+=step){
context.moveTo(x,y)
if (Math.random()>threshold)
context.lineTo(x+step,y+step)
else
context.lineTo(x-step,y+step)
}
context.strokeStyle = lineColor;
context.stroke();
return context.canvas;
}