This update includes full support for AV1 (*.avif) images, courtesy of @null54's AvifFileType plugin, which is now bundled.   In addition, I've spent a lot of time optimizing various parts of the canvas rendering engine. Memory usage and CPU usage are both lower across the board, which should help when working with large images, as well as images (large or small) with many layers. I've also made several bug fixes and improvements to the Move Selected Pixels, Magic Wand, Paint Bucket, a