chat-branch-visualizer/generate-icons.html at master · FuugaMo/chat-branch-visualizer · GitHub

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<!DOCTYPE html>
<html>
<body>
<canvas id="c"></canvas>
<script>
// Run this in browser to generate PNG icons, then save them to icons/
[16,48,128].forEach(size => {
  const c = document.getElementById('c');
  c.width = c.height = size;
  const ctx = c.getContext('2d');
  // Background
  ctx.fillStyle = '#161b22';
  ctx.beginPath();
  ctx.roundRect(0, 0, size, size, size * 0.15);
  ctx.fill();
  // Draw branch icon (⎇ style)
  ctx.strokeStyle = '#3fb950';
  ctx.lineWidth = Math.max(1.5, size / 12);
  ctx.lineCap = 'round';
  const m = size * 0.18;
  const cx = size / 2;
  // Trunk
  ctx.beginPath();
  ctx.moveTo(cx, m);
  ctx.lineTo(cx, size - m);
  ctx.stroke();
  // Left branch
  ctx.beginPath();
  ctx.moveTo(cx, size * 0.4);
  ctx.lineTo(m, size * 0.65);
  ctx.stroke();
  // Right branch
  ctx.beginPath();
  ctx.moveTo(cx, size * 0.4);
  ctx.lineTo(size - m, size * 0.65);
  ctx.stroke();
  // Dots at ends
  ctx.fillStyle = '#58a6ff';
  [[cx, m],[m, size*0.65],[size-m, size*0.65],[cx, size-m]].forEach(([x,y]) => {
    ctx.beginPath();
    ctx.arc(x, y, Math.max(1.5, size/14), 0, Math.PI*2);
    ctx.fill();
  });
  const link = document.createElement('a');
  link.download = `icon${size}.png`;
  link.href = c.toDataURL();
  link.textContent = `Download icon${size}.png`;
  link.style.display = 'block';
  document.body.appendChild(link);
});
</script>
</body>
</html>