message: updated the default color palette and removed the redundant model color map
diff: @@ -17,7 +17,7 @@ const DefaultColor = Color(0xCCCCCC);
  const Description = 'Gives every model a unique color based on the position (index) of the model in the list of models in the structure.';
  export const ModelIndexColorThemeParams = {
  - ...getPaletteParams({ type: 'colors', colorList: 'purples' }),
  + ...getPaletteParams({ type: 'colors', colorList: 'many-distinct' }),
  };
  export type ModelIndexColorThemeParams = typeof ModelIndexColorThemeParams
  export function getModelIndexColorThemeParams(ctx: ThemeDataContext) {
  @@ -35,17 +35,12 @@ export function ModelIndexColorTheme(ctx: ThemeDataContext, props: PD.Values<Mod
  const palette = getPalette(size, props);
  legend = palette.legend;
  - const modelColor = new Map<number, Color>();
  - for (let i = 0, il = models.length; i < il; ++i) {
  - const idx = Model.Index.get(models[i])?.value || 0;
  - modelColor.set(idx, palette.color(idx));
  - }
  color = (location: Location): Color => {
  if (StructureElement.Location.is(location)) {
  - return modelColor.get(Model.Index.get(location.unit.model).value || 0)!;
  + return palette.color(Model.Index.get(location.unit.model).value || 0)!;
  } else if (Bond.isLocation(location)) {
  - return modelColor.get(Model.Index.get(location.aUnit.model).value || 0)!;
  + return palette.color(Model.Index.get(location.aUnit.model).value || 0)!;
  }
  return DefaultColor;
  };
  