weave-scope/client/app/scripts/charts/node-shape-square.js

import React from 'react';

export default function NodeShapeSquare({highlighted, size, color, rx = 0, ry = 0}) {
  const rectProps = (v) => {
    return {
      width: v * size * 2,
      height: v * size * 2,
      rx: v * size * rx,
      ry: v * size * ry,
      transform: `translate(-${size * v}, -${size * v})`
    };
  };

  return (
    <g className="shape">
      {highlighted &&
        <rect className="highlighted" {...rectProps(0.7)} />}

      <rect className="border" stroke={color} {...rectProps(0.5)} />
      <rect className="shadow" {...rectProps(0.45)} />
      <circle className="node" r={Math.max(2, (size * 0.125))} />
    </g>
  );
}