I have a really stupid question about starting hand charts.

[lain21us]

I was looking at the starting hand charts here: http://archiveserver.twoplustwo.com/...mp;sb=5&o=

Some of the boxes are green, marked "LP", and some others are blue, marked "LA". Can someone explain to me what these mean? I'm guessing "loose passive" and "loose agressive", but I don't know exactly what the chart is saying. There are also some boxes that are one color, but with another color around the edges, sometimes moreso than others. Can somebody please explain to me how to read these charts? Thanks!