Images are often seen as the low-hanging fruit for performance optimization on the web, so there’s plenty of guidance around what image formats to use for which scenarios. But have you wondered why that is? Or how image data itself is interpreted by browsers? This talk goes down a rabbit hole in an attempt to uncover what goes on under the hood when it comes to rendering images on the web. And a deeper understanding of not only the how, but the why, can help you make more informed decisions about the images in your projects.