That's not a problem, I just wanted to make sure, I don't use crowdsourced data, I do use EDMC to send my data to EDDB however as I'm not objectionable to others using the data, each to their own I say.You are right. The problem with price data is that it needs to be as fresh as possible to be useful, and it's just not feasible with the way EDTB is set up (data downloaded to user's computer). There is some code related to trade routes etc. already in ED ToolBox (some commented out, most not included at all). I experimented with it a couple of months ago but I couldn't really get any better results than you can get with the multitude of trade tools already out there.
Of course you can use the Data Point to manually collect any information you want, including price data.
As for the color schema, there are no options for it in the config section, but there are a number of browser extension you can use to define your own styles (Stylish, User CSS etc.). I hope if someone does make custom styles for ED ToolBox that they'd share them so others can use them as well.
Regarding the Schema, thanks for the info I'll have a search around and see what/if I can figure anything out, or better still ask one of the design peeps at work for assistance, they're easily bribed with free beer.