anchor.diff:                  const _Stop(0.78, const _Color(217, 72, 1)),
                   const _Stop(0.90, const _Color(166, 54, 3)),
                   const _Stop(1.00, const _Color(127, 39, 4))],
  -        "PRGn": [
  +        "Pink-Red-Green": [
                   const _Stop(0.00, const _Color(123, 50, 148)),
                   const _Stop(0.25, const _Color(194, 165, 207)),
                   const _Stop(0.50, const _Color(247, 247, 247)),
                   const _Stop(0.75, const _Color(166, 219, 160)),
                   const _Stop(1.00, const _Color(0, 136, 55))],
  -        "PiYG": [
  +        "Pink-Yellow-Green": [
                   const _Stop(0.00, const _Color(208, 28, 139)),
                   const _Stop(0.25, const _Color(241, 182, 218)),
                   const _Stop(0.50, const _Color(247, 247, 247)),
                   const _Stop(0.75, const _Color(184, 225, 134)),
                   const _Stop(1.00, const _Color(77, 172, 38))],
  -        "PuBu": [
  +        "Purple-Blue": [
                   const _Stop(0.00, const _Color(241, 238, 246)),
                   const _Stop(0.25, const _Color(189, 201, 225)),
                   const _Stop(0.50, const _Color(116, 169, 207)),
                   const _Stop(0.75, const _Color(43, 140, 190)),
                   const _Stop(1.00, const _Color(4, 90, 141))],
  -        "PuBuGn": [
  +        "Purple-Blue-Green": [
                   const _Stop(0.00, const _Color(246, 239, 247)),
                   const _Stop(0.25, const _Color(189, 201, 225)),
                   const _Stop(0.50, const _Color(103, 169, 207)),
                   const _Stop(0.75, const _Color(28, 144, 153)),
                   const _Stop(1.00, const _Color(1, 108, 89))],
  -        "PuOr": [
  +        "Purple-Orange": [
                   const _Stop(0.00, const _Color(230, 97, 1)),
                   const _Stop(0.25, const _Color(253, 184, 99)),
                   const _Stop(0.50, const _Color(247, 247, 247)),
                   const _Stop(0.75, const _Color(178, 171, 210)),
                   const _Stop(1.00, const _Color(94, 60, 153))],
  -        "PuRd": [
  +        "Purple-Red": [
                   const _Stop(0.00, const _Color(241, 238, 246)),
                   const _Stop(0.25, const _Color(215, 181, 216)),
                   const _Stop(0.50, const _Color(223, 101, 176)),
  
positive.code:                 const _Stop(0.50, const _Color(255, 255, 191)),
                  const _Stop(0.75, const _Color(171, 221, 164)),
                  const _Stop(1.00, const _Color(43, 131, 186))],
          "YlGn": [
                  const _Stop(0.00, const _Color(255, 255, 204)),
                  const _Stop(0.25, const _Color(194, 230, 153)),
                  const _Stop(0.50, const _Color(120, 198, 121)),
                  const _Stop(0.75, const _Color(49, 163, 84)),
                  const _Stop(1.00, const _Color(0, 104, 55))],
          "YlGnBu": [
                  const _Stop(0.00, const _Color(255, 255, 204)),
                  const _Stop(0.25, const _Color(161, 218, 180)),
                  const _Stop(0.50, const _Color(65, 182, 196)),
                  const _Stop(0.75, const _Color(44, 127, 184)),
                  const _Stop(1.00, const _Color(37, 52, 148))],
          "YlOrBr": [
                  const _Stop(0.00, const _Color(255, 255, 212)),
                  const _Stop(0.25, const _Color(254, 217, 142)),
                  const _Stop(0.50, const _Color(254, 153, 41)),
                  const _Stop(0.75, const _Color(217, 95, 14)),
                  const _Stop(1.00, const _Color(153, 52, 4))],
          "YlOrRd": [
                  const _Stop(0.00, const _Color(255, 255, 178)),
                  const _Stop(0.25, const _Color(254, 204, 92)),
                  const _Stop(0.50, const _Color(253, 141, 60)),
  
negative.code:                 const _Stop(0.75, const _Color(106, 81, 163)),
                  const _Stop(0.90, const _Color(84, 39, 143)),
                  const _Stop(1.00, const _Color(63, 0, 125))],
          "Red-Blue": [
                  const _Stop(0.00, const _Color(202, 0, 32)),
                  const _Stop(0.25, const _Color(244, 165, 130)),
                  const _Stop(0.50, const _Color(247, 247, 247)),
                  const _Stop(0.75, const _Color(146, 197, 222)),
                  const _Stop(1.00, const _Color(5, 113, 176))],
          "Red-Grey": [
                  const _Stop(0.00, const _Color(202, 0, 32)),
                  const _Stop(0.25, const _Color(244, 165, 130)),
                  const _Stop(0.50, const _Color(255, 255, 255)),
                  const _Stop(0.75, const _Color(186, 186, 186)),
                  const _Stop(1.00, const _Color(64, 64, 64))],
          "Red-Purple": [
                  const _Stop(0.00, const _Color(254, 235, 226)),
                  const _Stop(0.25, const _Color(251, 180, 185)),
                  const _Stop(0.50, const _Color(247, 104, 161)),
                  const _Stop(0.75, const _Color(197, 27, 138)),
                  const _Stop(1.00, const _Color(122, 1, 119))],
          "Red-Yellow-Blue": [
                  const _Stop(0.00, const _Color(215, 25, 28)),
                  const _Stop(0.25, const _Color(253, 174, 97)),
                  const _Stop(0.50, const _Color(255, 255, 191)),
  