TLDR: Demo is at https://shaneosullivan.github.io/example-canvas-fill/ , code is at https://github.com/shaneosullivan/example-canvas-fill . The Problem When building a website or app using HTML Canvas, it’s often a requirement to support a flood fill. That is, when the user chooses a colour and clicks on a pixel, fill all the surrounding pixels that match the colour of the … Continue reading Instant colour fill with HTML Canvas→
