Cobalt Fretwork

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 500 500" width="100%"><path d="M399,267.5Q357,285,355,305Q353,325,354,360Q355,395,331,409.5Q307,424,278.5,416Q250,408,226,403.5Q202,399,161.5,413.5Q121,428,90,408.5Q59,389,67.5,348Q76,307,95,278.5Q114,250,100,223.5Q86,197,92,168.5Q98,140,105,100Q112,60,158.5,85.5Q205,111,227.5,60.5Q250,10,287.5,15Q325,20,339,64Q353,108,383,120Q413,132,407,166.5Q401,201,421,225.5Q441,250,399,267.5Z" fill="none" stroke="#0668b6" stroke-width="7"/></svg>

.blob {
  width: 500px;
  height: 500px;
  clip-path: path("M399,267.5Q357,285,355,305Q353,325,354,360Q355,395,331,409.5Q307,424,278.5,416Q250,408,226,403.5Q202,399,161.5,413.5Q121,428,90,408.5Q59,389,67.5,348Q76,307,95,278.5Q114,250,100,223.5Q86,197,92,168.5Q98,140,105,100Q112,60,158.5,85.5Q205,111,227.5,60.5Q250,10,287.5,15Q325,20,339,64Q353,108,383,120Q413,132,407,166.5Q401,201,421,225.5Q441,250,399,267.5Z");
}

/**
 * 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}`;

  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="M399,267.5Q357,285,355,305Q353,325,354,360Q355,395,331,409.5Q307,424,278.5,416Q250,408,226,403.5Q202,399,161.5,413.5Q121,428,90,408.5Q59,389,67.5,348Q76,307,95,278.5Q114,250,100,223.5Q86,197,92,168.5Q98,140,105,100Q112,60,158.5,85.5Q205,111,227.5,60.5Q250,10,287.5,15Q325,20,339,64Q353,108,383,120Q413,132,407,166.5Q401,201,421,225.5Q441,250,399,267.5Z"
        fill="none"
        stroke="#0668b6"
        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(399.0 * sx, 267.5 * sy);
  path.quadraticBezierTo(357.0 * sx, 285.0 * sy, 355.0 * sx, 305.0 * sy);
  path.quadraticBezierTo(353.0 * sx, 325.0 * sy, 354.0 * sx, 360.0 * sy);
  path.quadraticBezierTo(355.0 * sx, 395.0 * sy, 331.0 * sx, 409.5 * sy);
  path.quadraticBezierTo(307.0 * sx, 424.0 * sy, 278.5 * sx, 416.0 * sy);
  path.quadraticBezierTo(250.0 * sx, 408.0 * sy, 226.0 * sx, 403.5 * sy);
  path.quadraticBezierTo(202.0 * sx, 399.0 * sy, 161.5 * sx, 413.5 * sy);
  path.quadraticBezierTo(121.0 * sx, 428.0 * sy, 90.0 * sx, 408.5 * sy);
  path.quadraticBezierTo(59.0 * sx, 389.0 * sy, 67.5 * sx, 348.0 * sy);
  path.quadraticBezierTo(76.0 * sx, 307.0 * sy, 95.0 * sx, 278.5 * sy);
  path.quadraticBezierTo(114.0 * sx, 250.0 * sy, 100.0 * sx, 223.5 * sy);
  path.quadraticBezierTo(86.0 * sx, 197.0 * sy, 92.0 * sx, 168.5 * sy);
  path.quadraticBezierTo(98.0 * sx, 140.0 * sy, 105.0 * sx, 100.0 * sy);
  path.quadraticBezierTo(112.0 * sx, 60.0 * sy, 158.5 * sx, 85.5 * sy);
  path.quadraticBezierTo(205.0 * sx, 111.0 * sy, 227.5 * sx, 60.5 * sy);
  path.quadraticBezierTo(250.0 * sx, 10.0 * sy, 287.5 * sx, 15.0 * sy);
  path.quadraticBezierTo(325.0 * sx, 20.0 * sy, 339.0 * sx, 64.0 * sy);
  path.quadraticBezierTo(353.0 * sx, 108.0 * sy, 383.0 * sx, 120.0 * sy);
  path.quadraticBezierTo(413.0 * sx, 132.0 * sy, 407.0 * sx, 166.5 * sy);
  path.quadraticBezierTo(401.0 * sx, 201.0 * sy, 421.0 * sx, 225.5 * sy);
  path.quadraticBezierTo(441.0 * sx, 250.0 * sy, 399.0 * sx, 267.5 * 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(0xFF0668B6)
      ..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;
}