It would be nice if it was possible to supply a seed for the randomization algorithm. Then the image wouldn't change at every reload and it's still possible to

It would be nice if it was possible to supply a seed for the randomization algorithm. Then the image wouldn't change at every reload and it's still possible to get another one if it's desired. I imagine it would be a bit annoying if the image changed every time I reloaded the page which I do quite a lot while developing a web page. If I were to show a page I've developed to a customer I would not like to have to explain why the images are changing all the time. Apart from that I find this really nice.