colorGroupStyle :: Double -> ColorParams Double
colorGroupStyle zeroHue = ColorParams {
    cpScale   = 0.6
  , cpZeroHue = zeroHue
  , cpVBottom = 0.75, cpVRange = 0.2
  , cpSBottom = 0.4,  cpSRange = 0.00
  }
colorGroupStyle :: Double -> ColorParams Double
colorGroupStyle zeroHue = ColorParams {
    cpScale   = 0.6
  , cpZeroHue = zeroHue
  , cpVBottom = 0.75, cpVRange = 0.2
  , cpSBottom = 0.4,  cpSRange = 0.00
  }
colorGroupStyle zeroHue = ColorParams {
    cpScale   = 0.6
  , cpZeroHue = zeroHue
  , cpVBottom = 0.75, cpVRange = 0.2
  , cpSBottom = 0.4,  cpSRange = 0.00
  }