stacked bar graphs for different data attributes?

Hi all,

Loving this framework so far.

I'm wondering if it can be leverages to have a partcualr kind of visualization; I am looking to create stacked bar graphs of various attributes similar to this:
http://globe.cid.harvard.edu/?mode=productspace3D&id=CO

One of the key features here is that each segment of the bar graph can be a different color (or I can conceive of these as bars stacked consecutively on top of each other).

I see ways to do bar data driven bar graphs with color ramps, but the color ramps only appear to be applied across the entire dataset.

Am I overlooking a way to implement a similar type of visualization in this framework?