This is a short section to look at type of puzzle built out of image manipulation code.
Here we have the "gold" puzzle image -- fix it to see the real image
Gold puzzle parameters:
In this case, our solution shows the image, but it's all in red. What we have here is basically a black-and-white image, but it is shown in the black-red range, rather than the usual black-white. For this section, we'll say that's good enough. We'll see how to fix the red image so it looks like a proper black-and-white image in a later section.