[Resets to original zoom, doesn't change colour scheme or iteration depth values.]
Click to zoom in on a point, or click and drag to zoom in on a region. Zoom in or out. [Use single clicks on the image when zooming out.]
Create your own colour scheme: click on some colours below, then click "Go!".
Enter RGB colours in the boxes below, then click "use this colour". [0 is none of that colour, 255 is max of that colour.] You can use the colour palette above, as well as your own colours. Once you've chosen all your colours, click the big "Go!" button above.
To return to your zoom, click 'Full url', and copy or bookmark the url.