Here's one of the pigment inks that Organics Studio recently released. This one is apparently entirely pigmented with Chlorophyll. Which is pretty neat actually. It's definitely waterproof, as the scan should show. Which is good, because the color's so light. It dries a little darker than it seems going down. Actually, there's a bit more shading while writing, and the really light parts darken, and the darker parts lighten. It sort of equalizes. It doesn't look runny or thin after it dries, which again is good. Because some really light greens I've tried look like watered down highlighter. Try as I might, I just can't see myself using this color. Too light and the hue isn't really my favorite (though pea green is very appropriate). That's very much a personal taste though.