Cobalt Fringe

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 500 500" width="100%"><path d="M458,288.5Q436,327,420,365.5Q404,404,371,433Q338,462,294,461.5Q250,461,204,466.5Q158,472,126,439Q94,406,57.5,375.5Q21,345,30.5,297.5Q40,250,45,208.5Q50,167,63,121.5Q76,76,122,64Q168,52,209,37Q250,22,295,27.5Q340,33,382.5,54Q425,75,452,115Q479,155,479.5,202.5Q480,250,458,288.5Z" fill="none" stroke="#0668b6" stroke-width="7"/></svg>

.blob {
  width: 500px;
  height: 500px;
  clip-path: path("M458,288.5Q436,327,420,365.5Q404,404,371,433Q338,462,294,461.5Q250,461,204,466.5Q158,472,126,439Q94,406,57.5,375.5Q21,345,30.5,297.5Q40,250,45,208.5Q50,167,63,121.5Q76,76,122,64Q168,52,209,37Q250,22,295,27.5Q340,33,382.5,54Q425,75,452,115Q479,155,479.5,202.5Q480,250,458,288.5Z");
}

/**
 * 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="M458,288.5Q436,327,420,365.5Q404,404,371,433Q338,462,294,461.5Q250,461,204,466.5Q158,472,126,439Q94,406,57.5,375.5Q21,345,30.5,297.5Q40,250,45,208.5Q50,167,63,121.5Q76,76,122,64Q168,52,209,37Q250,22,295,27.5Q340,33,382.5,54Q425,75,452,115Q479,155,479.5,202.5Q480,250,458,288.5Z"
        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(458.0 * sx, 288.5 * sy);
  path.quadraticBezierTo(436.0 * sx, 327.0 * sy, 420.0 * sx, 365.5 * sy);
  path.quadraticBezierTo(404.0 * sx, 404.0 * sy, 371.0 * sx, 433.0 * sy);
  path.quadraticBezierTo(338.0 * sx, 462.0 * sy, 294.0 * sx, 461.5 * sy);
  path.quadraticBezierTo(250.0 * sx, 461.0 * sy, 204.0 * sx, 466.5 * sy);
  path.quadraticBezierTo(158.0 * sx, 472.0 * sy, 126.0 * sx, 439.0 * sy);
  path.quadraticBezierTo(94.0 * sx, 406.0 * sy, 57.5 * sx, 375.5 * sy);
  path.quadraticBezierTo(21.0 * sx, 345.0 * sy, 30.5 * sx, 297.5 * sy);
  path.quadraticBezierTo(40.0 * sx, 250.0 * sy, 45.0 * sx, 208.5 * sy);
  path.quadraticBezierTo(50.0 * sx, 167.0 * sy, 63.0 * sx, 121.5 * sy);
  path.quadraticBezierTo(76.0 * sx, 76.0 * sy, 122.0 * sx, 64.0 * sy);
  path.quadraticBezierTo(168.0 * sx, 52.0 * sy, 209.0 * sx, 37.0 * sy);
  path.quadraticBezierTo(250.0 * sx, 22.0 * sy, 295.0 * sx, 27.5 * sy);
  path.quadraticBezierTo(340.0 * sx, 33.0 * sy, 382.5 * sx, 54.0 * sy);
  path.quadraticBezierTo(425.0 * sx, 75.0 * sy, 452.0 * sx, 115.0 * sy);
  path.quadraticBezierTo(479.0 * sx, 155.0 * sy, 479.5 * sx, 202.5 * sy);
  path.quadraticBezierTo(480.0 * sx, 250.0 * sy, 458.0 * sx, 288.5 * 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;
}