>The example with the circles is a little misleading. The first task is find the circle, whereas the second task is find the red object, since this is the circl

>The example with the circles is a little misleading. The first task is find the circle, whereas the second task is find the red object, since this is the circle. I think you completely missed the point of the square/circle example. The red circle is just a circle with syntax highlighting. The task is still to find the circle, but you are supposed to know in advance that the syntax highlight color for "a circle" is red. The first circle is shown without syntax highlighting, the second circle is shown with syntax highlighting. "Square" and "circle" is the syntax, red is the highlighting. The point of the first example is to show how much easier it is to spot the circle when it takes advantage of syntax highlighting. It's a very good example of why syntax highlighting helps with these kinds of tasks. The squares could be blue, black, yellow or white and it would still be easier to spot the circle because it's highlighted in red. It doesn't even matter what color the circle was highlighted with, so long as it's different than the syntax highlighting of the squares.