Ink Fretwork

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 500 500" width="100%"><path d="M476,288Q460,326,444,362.5Q428,399,396.5,424.5Q365,450,328,465Q291,480,250,480.5Q209,481,179,453Q149,425,123,402Q97,379,78.5,349Q60,319,40.5,284.5Q21,250,34,213Q47,176,71.5,148.5Q96,121,118,90Q140,59,175.5,44Q211,29,249.5,33Q288,37,328,41Q368,45,389,80Q410,115,433.5,145Q457,175,474.5,212.5Q492,250,476,288Z" fill="none" stroke="#111827" stroke-width="7"/></svg>

.blob {
  width: 500px;
  height: 500px;
  clip-path: path("M476,288Q460,326,444,362.5Q428,399,396.5,424.5Q365,450,328,465Q291,480,250,480.5Q209,481,179,453Q149,425,123,402Q97,379,78.5,349Q60,319,40.5,284.5Q21,250,34,213Q47,176,71.5,148.5Q96,121,118,90Q140,59,175.5,44Q211,29,249.5,33Q288,37,328,41Q368,45,389,80Q410,115,433.5,145Q457,175,474.5,212.5Q492,250,476,288Z");
}

/**
 * Blob — generated by blobs.app.
 *
 * Drop this file into your project and render <Blob /> anywhere.
 */
import { useId } from 'react';

export interface BlobProps {
  /** Rendered width and height. A number is treated as px. Defaults to 100%. */
  size?: number | string;
  /** Class name for the root svg element. */
  className?: string;
  /** Accessible name. Without it the graphic is hidden from assistive tech. */
  title?: string;
}

export function Blob({ size = '100%', className, title }: BlobProps) {
  // Unique per instance, so two blobs on one page never share a def id.
  const uid = useId().replace(/[^a-zA-Z0-9]/g, '');
  const titleId = `blob-title-${uid}`;

  return (
    <svg
      xmlns="http://www.w3.org/2000/svg"
      viewBox="0 0 500 500"
      width={size}
      height={size}
      className={className}
      role={title ? 'img' : undefined}
      aria-labelledby={title ? titleId : undefined}
      aria-hidden={title ? undefined : true}
    >
      {title ? <title id={titleId}>{title}</title> : null}
      <path
        d="M476,288Q460,326,444,362.5Q428,399,396.5,424.5Q365,450,328,465Q291,480,250,480.5Q209,481,179,453Q149,425,123,402Q97,379,78.5,349Q60,319,40.5,284.5Q21,250,34,213Q47,176,71.5,148.5Q96,121,118,90Q140,59,175.5,44Q211,29,249.5,33Q288,37,328,41Q368,45,389,80Q410,115,433.5,145Q457,175,474.5,212.5Q492,250,476,288Z"
        fill="none"
        stroke="#111827"
        strokeWidth={7}
      />
    </svg>
  );
}

export default Blob;

// Generated by blobs.app.
//
// Paint the blob:
//   CustomPaint(painter: BlobPainter(), size: const Size(300, 300))
//
// Or clip a widget to it:
//   ClipPath(clipper: BlobClipper(), child: child)

import 'dart:ui' as ui;

import 'package:flutter/material.dart';

/// The blob outline, scaled from its 500x500 design space to [size].
Path buildBlobPath(Size size) {
  final double sx = size.width / 500.0;
  final double sy = size.height / 500.0;
  final Path path = Path();
  path.moveTo(476.0 * sx, 288.0 * sy);
  path.quadraticBezierTo(460.0 * sx, 326.0 * sy, 444.0 * sx, 362.5 * sy);
  path.quadraticBezierTo(428.0 * sx, 399.0 * sy, 396.5 * sx, 424.5 * sy);
  path.quadraticBezierTo(365.0 * sx, 450.0 * sy, 328.0 * sx, 465.0 * sy);
  path.quadraticBezierTo(291.0 * sx, 480.0 * sy, 250.0 * sx, 480.5 * sy);
  path.quadraticBezierTo(209.0 * sx, 481.0 * sy, 179.0 * sx, 453.0 * sy);
  path.quadraticBezierTo(149.0 * sx, 425.0 * sy, 123.0 * sx, 402.0 * sy);
  path.quadraticBezierTo(97.0 * sx, 379.0 * sy, 78.5 * sx, 349.0 * sy);
  path.quadraticBezierTo(60.0 * sx, 319.0 * sy, 40.5 * sx, 284.5 * sy);
  path.quadraticBezierTo(21.0 * sx, 250.0 * sy, 34.0 * sx, 213.0 * sy);
  path.quadraticBezierTo(47.0 * sx, 176.0 * sy, 71.5 * sx, 148.5 * sy);
  path.quadraticBezierTo(96.0 * sx, 121.0 * sy, 118.0 * sx, 90.0 * sy);
  path.quadraticBezierTo(140.0 * sx, 59.0 * sy, 175.5 * sx, 44.0 * sy);
  path.quadraticBezierTo(211.0 * sx, 29.0 * sy, 249.5 * sx, 33.0 * sy);
  path.quadraticBezierTo(288.0 * sx, 37.0 * sy, 328.0 * sx, 41.0 * sy);
  path.quadraticBezierTo(368.0 * sx, 45.0 * sy, 389.0 * sx, 80.0 * sy);
  path.quadraticBezierTo(410.0 * sx, 115.0 * sy, 433.5 * sx, 145.0 * sy);
  path.quadraticBezierTo(457.0 * sx, 175.0 * sy, 474.5 * sx, 212.5 * sy);
  path.quadraticBezierTo(492.0 * sx, 250.0 * sy, 476.0 * sx, 288.0 * sy);
  path.close();
  return path;
}

class BlobPainter extends CustomPainter {
  const BlobPainter();

  @override
  void paint(Canvas canvas, Size size) {
    final Path path = buildBlobPath(size);
    final Paint paint = Paint()
      ..isAntiAlias = true
      ..color = const Color(0xFF111827)
      ..style = PaintingStyle.stroke
      ..strokeWidth = 7.0 * (size.width / 500.0);
    canvas.drawPath(path, paint);
  }

  @override
  bool shouldRepaint(covariant BlobPainter oldDelegate) => false;
}

/// Clips any widget to the same shape: ClipPath(clipper: BlobClipper(), ...).
class BlobClipper extends CustomClipper<Path> {
  const BlobClipper();

  @override
  Path getClip(Size size) => buildBlobPath(size);

  @override
  bool shouldReclip(covariant CustomClipper<Path> oldClipper) => false;
}