Rails - Feb 2011 - Hbar color - openflash chart

Hi, am using Openflashchart plugin,How can we change the color of each
bar in Hbar openflash chart

this is the code i have inside my controller



def stat_bar
    title = Title.new(session[:tag])

    hbar = HBar.new

    hbar.values = [HBarValue.new(0,10),HBarValue.new(0,20)]
    hbar.colour = ''#FF8000'' # this works for the two bars

    chart = OpenFlashChart.new
    chart.set_title(title)
    chart.add_element(hbar)

    x = XAxis.new
    x.set_offset(false)
    chart.set_x_axis(x)

    y = YAxis.new
    y.set_offset(true)
    y.set_labels(["Yes","No"])
    chart.set_y_axis(y)

    render :text => chart.to_s
  end


Please help !!

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