You're supposed to mark the states/provinces thusly:
-red for states where you've not spent much time or seen very much.
-amber for states where you've at least slept and seen some sights.
-blue for states you've spent a lot of time in or seen a fair amount of.
-green for states you've spent a great deal of time in on multiple visits.
I'm pretty sure I've driven through Nebraska and Kansas, so I kept those states red. I haven't been to the upper New England states at all and I don't remember being in the Carolinas either. Overall, I believe this is a fairly accurate depiction of where I've been. Lots of traveling in my past, mostly in my childhood years and after I graduated from high school. ;)