Organize into Levels?

[justinfagnani]

This is a truly awesome list!

But it might a bit on the long side. I wonder if it would useful to organize it into levels of importance. For instance, loading dependencies and reattachment are way more critical than say restrained colors.

Some of the more important and trickier parts, like supporting content re-projection, or non-obvious enough that they could benefit from being part of a lower level (assuming Level 0 or 1 is the most important).