Sorry, the color of the bar charts can't be changed.
Thanks fro your response Randy. May I respectfully suggest some flexibiltiy with these defaults be considered. For instance, I'm currently developing a survey testing the waters for an ecumenical, multifaith campus ministry in my community. The scale 'unimportant, low importance, neutral, important, very important' would stand out in the bar graph much better if the colours were better matched to the scale. ie. 'unimportant = blue' and 'very important = red' or something like that. . .
That said, I'm loving forms central.
of course, that said, I just noticed that my suggest colour scheme is pretty close to the default. . .
This is also an issue for me as well. I would suggest some sort of way to edit this. I want the agree and strongly agree to be different shades of green while disagree and strongly disagree different shades of red. The color scale is enough of a problem that I am considering switching software.