message: Address comments on PR#336
diff: @@ -110,7 +110,7 @@ class IrrationalIdColorMap : IdColorMap {
  void setIrrationalBase(float value) { irrational_base_ = value; }
  - virtual Color colorLookup(size_t value) const {
  + virtual Color colorLookup(const size_t value) const {
  const float normalized_color = std::fmod(value / irrational_base_, 1.f);
  return rainbowColorMap(normalized_color);
  }
  @@ -130,7 +130,7 @@ class ExponentialOffsetColorMap : IdColorMap {
  void setItemsPerRevolution(uint value) { items_per_revolution_ = value; }
  - virtual Color colorLookup(size_t value) const {
  + virtual Color colorLookup(const size_t value) const {
  const size_t revolution = value / items_per_revolution_;
  const float progress_along_revolution =
  std::fmod(value / items_per_revolution_, 1.f);
  