I was off to a good start with my project (dojox chartin improvements) with the candle plot. We basically followed the same model as in columns and did it.
Actually it's clustered columns. I don't know whether this is a valid thing in these type of plots... Anyway I thought is a nice feature to add so that you can actually add more than one series
Add Series for chart looked something like below...

But Eugene Suggested that it would be more appropriate to have long names like..

I also feel like that is a better way except for taking up little more space which is bad! Anyway your suggestions are most welcomed!
So here is the sample screen....

Also you may call this box or finacial plot too. Eventhough I can't find any differences you might.. So please comment if you want to add/remove/modify any features..