@atlaskit/tokens/dist/es2019/is-theme-kind.js

Design tokens are the single source of truth to name and store design decisions.

const themeKinds = ['light', 'dark', 'spacing', 'typography', 'shape', 'motion'];
export const isThemeKind = themeKind => {
  return themeKinds.find(kind => kind === themeKind) !== undefined;
};