This is only available in Opera 9 for now, and it’s pretty damn slow. Performance on Firefox 3/Gran Paradiso was even worse by a couple of magnitudes, so I haven’t enabled it there yet — I guess I’ll be benchmarking some different flood fill algorithms later this week.

You can now use File>Open to load images from the web – including, but not limited to, ones created with CanvasPaint.

Image upload is next.