Bug in the caption: important values are light and less important ones dark

[C-Sophie]

So we've got semiotics backwards, in fact. I've tested several, blue, red... Is it possible to create a color palette to make your own sauce?

I don't want to use the manual mode to change colors, because then the caption would be inverted: I want to put the most-used service at the top of the caption, with the darkest color. So it's the palette that needs to be inverted, from lightest (lowest values) to darkest (highest values). We've got a semiotic glitch on this one.

What I've done: I've inverted all the category lists to get the colors consistent with “+ to -”. And in the blank under the caption I'll put a pie chart. I'd have to be able to display the caption “in order”, but that's not possible, the most important one is at the bottom. (it's a kind of mapfail)