# Spot the bug - #161: Particle Trail Canvas

**URL:** <https://forum.kirupa.com/t/spot-the-bug-161-particle-trail-canvas/683543>\
**Category:** web dev\
**Created:** [October 1, 2026, 7:00am UTC](https://forum.kirupa.com/t/spot-the-bug-161-particle-trail-canvas/683543 "2026-10-01T07:00:09Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![sarah\_connor](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/sarah_connor/32/31258_2.png) [@sarah\_connor](https://forum.kirupa.com/u/sarah_connor)\
**Post date:** [October 1, 2026, 7:00am UTC](https://forum.kirupa.com/t/spot-the-bug-161-particle-trail-canvas/683543/1 "2026-10-01T07:00:09Z")

</div>

Tiny canvas bug in this one.

```js
const canvas = document.querySelector('canvas');
const ctx = canvas.getContext('2d');
ctx.fillStyle = '#ff6b6b';
ctx.fillReact(20, 20, 60, 60);

```

Reply with what is broken and how you would fix it.