Legend component props were missing entirely from the generated API documentation on the website because omnidoc/readProject.ts failed to extract props from React.memo-wrapped components without an explicit type annotation.

Root Cause

Legend = React.memo(LegendImpl, propsAreEqual) produces type React.MemoExoticComponent<typeof LegendImpl>. The alias symbol is MemoExoticComponent and its alias type argument is the wrapped function type (typeof LegendImpl), not the Props type directly. The code path fell through to getTypeArgumentsOfComponentType(), which returned the function type as-is — causing collectPropertiesFromType to find zero properties.

Contrast with components annotated as : ComponentType<Props> (e.g. BarStack) where the alias type argument is the Props type, and those work fine.

Changes

• omnidoc/readProject.ts — In getPropsType, detect MemoExoticComponent alias and extract the Props type from the inner function's call signature first parameter:

  const innerFunctionType = type.getAliasTypeArguments()[0];
  const params = innerFunctionType?.getCallSignatures()?.[0]?.getParameters() ?? [];
  if (params.length > 0) {
    return params[0].getTypeAtLocation(declaration);
  }

• src/component/Legend.tsx — Added labelStyle: {} to legendDefaultProps to match the @defaultValue {} JSDoc inherited from DefaultLegendContentProps. This pre-existing inconsistency was hidden while Legend had 0 props discovered; now surfaces and is fixed.

• www/src/docs/api/LegendAPI.tsx — Regenerated; now contains the full Legend prop list with descriptions, defaults, and examples.

• test/component/Legend.spec.tsx, test/component/Legend.itemSorter.spec.tsx — Updated expectations for props passed to content functions to include labelStyle: {}.

Related Issue

Legend props don't appear on the website (omnidoc generation bug).

Motivation and Context

Without this fix, the Legend API documentation page on recharts.org shows no props at all, making it unusable as a reference.

How Has This Been Tested?

• npx vitest run omnidoc/ — 515 tests pass
• npx vitest run test/component/Legend.spec.tsx test/component/Legend.itemSorter.spec.tsx — 335 tests pass
• npx tsx omnidoc/generateApiDoc.ts — LegendAPI.tsx now emits a full props array

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• I have added a storybook story or VR test, or extended an existing story or VR test to show my changes

Summary by CodeRabbit

• New Features
  • Legend component now includes a new labelStyle default property, providing enhanced customization options for label styling with sensible default values.