I like the animation at the top, except that it's meaningless unless you know what the different parts represent. If you scroll down far enough, you will eventually find this:

    Each circle is a task. The white progress circle around tasks is the time left to run until the task is blocked.
    Purple box - The queue holding tasks ready to run.
    Green box - The CPU.
    Gray box - Tasks blocked on something (e.g. I/O).

It would be great to have that description right at the top with the first animation.