Oh - and colors are grey-blue to red, with red being pareto optimal
It's great that you have the data. I'm sure that took a lot of time to obtain. Spending a few more percent of your total time making the presentation of the data intuitive to others is almost certainly the highest ROI thing you can do at this point, if you want your site to be useful enough to get enough visitors to pay for the cost of acquiring the data.
Feel free to tell me that red is the lowest Pareto value and that's why you made the frontier red, or whatever. I'll still respond that the details of the presentation matters enormously to adoption, and the current presentation is very far from optimally intuitive to those of us who didn't personally develop the data.
Now when clicking on the 'dealscope' button there's a little modal which tries to clear it up a bit.
Disagree. Yellow as a progression away from the green/blue (that fade away into gray) towards red is quite obvious.