Zigzag Thistle

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 500 500" width="100%"><defs><pattern id="blob-pattern" patternUnits="userSpaceOnUse" width="24" height="16"><path d="M0 10L12 2L24 10L24 15L12 7L0 15Z" fill="#d7819b" fill-rule="evenodd"/></pattern></defs><path d="M469,292.5Q485,335,396.5,317Q308,299,306.5,322.5Q305,346,288,357Q271,368,244,401.5Q217,435,202.5,396Q188,357,180,336Q172,315,108.5,320Q45,325,97.5,287.5Q150,250,154.5,233.5Q159,217,108.5,153Q58,89,94,65.5Q130,42,175,60.5Q220,79,254.5,54.5Q289,30,294.5,96.5Q300,163,318.5,170Q337,177,408.5,171.5Q480,166,466.5,208Q453,250,469,292.5Z" fill="url(#blob-pattern)"/></svg>

.blob {
  width: 500px;
  height: 500px;
  clip-path: path("M469,292.5Q485,335,396.5,317Q308,299,306.5,322.5Q305,346,288,357Q271,368,244,401.5Q217,435,202.5,396Q188,357,180,336Q172,315,108.5,320Q45,325,97.5,287.5Q150,250,154.5,233.5Q159,217,108.5,153Q58,89,94,65.5Q130,42,175,60.5Q220,79,254.5,54.5Q289,30,294.5,96.5Q300,163,318.5,170Q337,177,408.5,171.5Q480,166,466.5,208Q453,250,469,292.5Z");
}

/**
 * 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-${uid}`;
  const patternId = `blob-pattern-${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}
      <defs>
        <pattern id={patternId} patternUnits="userSpaceOnUse" width="24" height="16">
          <path d="M0 10L12 2L24 10L24 15L12 7L0 15Z" fill="#d7819b" fillRule="evenodd" />
        </pattern>
      </defs>
      <path
        d="M469,292.5Q485,335,396.5,317Q308,299,306.5,322.5Q305,346,288,357Q271,368,244,401.5Q217,435,202.5,396Q188,357,180,336Q172,315,108.5,320Q45,325,97.5,287.5Q150,250,154.5,233.5Q159,217,108.5,153Q58,89,94,65.5Q130,42,175,60.5Q220,79,254.5,54.5Q289,30,294.5,96.5Q300,163,318.5,170Q337,177,408.5,171.5Q480,166,466.5,208Q453,250,469,292.5Z"
        fill={`url(#${patternId})`}
      />
    </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(469.0 * sx, 292.5 * sy);
  path.quadraticBezierTo(485.0 * sx, 335.0 * sy, 396.5 * sx, 317.0 * sy);
  path.quadraticBezierTo(308.0 * sx, 299.0 * sy, 306.5 * sx, 322.5 * sy);
  path.quadraticBezierTo(305.0 * sx, 346.0 * sy, 288.0 * sx, 357.0 * sy);
  path.quadraticBezierTo(271.0 * sx, 368.0 * sy, 244.0 * sx, 401.5 * sy);
  path.quadraticBezierTo(217.0 * sx, 435.0 * sy, 202.5 * sx, 396.0 * sy);
  path.quadraticBezierTo(188.0 * sx, 357.0 * sy, 180.0 * sx, 336.0 * sy);
  path.quadraticBezierTo(172.0 * sx, 315.0 * sy, 108.5 * sx, 320.0 * sy);
  path.quadraticBezierTo(45.0 * sx, 325.0 * sy, 97.5 * sx, 287.5 * sy);
  path.quadraticBezierTo(150.0 * sx, 250.0 * sy, 154.5 * sx, 233.5 * sy);
  path.quadraticBezierTo(159.0 * sx, 217.0 * sy, 108.5 * sx, 153.0 * sy);
  path.quadraticBezierTo(58.0 * sx, 89.0 * sy, 94.0 * sx, 65.5 * sy);
  path.quadraticBezierTo(130.0 * sx, 42.0 * sy, 175.0 * sx, 60.5 * sy);
  path.quadraticBezierTo(220.0 * sx, 79.0 * sy, 254.5 * sx, 54.5 * sy);
  path.quadraticBezierTo(289.0 * sx, 30.0 * sy, 294.5 * sx, 96.5 * sy);
  path.quadraticBezierTo(300.0 * sx, 163.0 * sy, 318.5 * sx, 170.0 * sy);
  path.quadraticBezierTo(337.0 * sx, 177.0 * sy, 408.5 * sx, 171.5 * sy);
  path.quadraticBezierTo(480.0 * sx, 166.0 * sy, 466.5 * sx, 208.0 * sy);
  path.quadraticBezierTo(453.0 * sx, 250.0 * sy, 469.0 * sx, 292.5 * sy);
  path.close();
  return path;
}

class BlobPainter extends CustomPainter {
  const BlobPainter();

  @override
  void paint(Canvas canvas, Size size) {
    final Path path = buildBlobPath(size);
    // Pattern and image fills are not supported in this exporter; use the SVG export.
    final Paint paint = Paint()
      ..isAntiAlias = true
      ..color = const Color(0xFFD7819B);
    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;
}