[globalTypes] I'm looking for some way for using "control : color" for globaltype.

[rexgenPlatform]

Summary

I'm trying to make some theme color palette for our designers.
So I tried to make global type in toolbar and read those in each stories.
But, global types aren't working proper in option of control : color.
It works for option of items, but not working in controls... so I'm asking in this part.

below is my preview.ts
(Storybook 8.1.10, React 18.3.1)

import type { Preview } from "@storybook/react";

const preview: Preview = {
  parameters: {
    controls: {
      matchers: {
        color: /(mainColor|subColor|color|backgroundColor|hoverColor|hoverBackgroundColor)$/i,
        date: /Date$/i,
      },
    },
  },
  globalTypes: {
    mainColor: {
      description: '전체 테마의 색상 변경',
      defaultValue: '#ff0000',
      toolbar: {
        title: 'Primary',
        items: [ '#ff0000', '#00ff00', '#0000ff']
      }
    },
    subColor: {
      description: '서브 테마의 색상 변경',
      defaultValue: '#000000',
      toolbar: {
        title: 'Sub',
      }
    },
  },
};

export default preview;

and here is error

Uncaught TypeError: Cannot read properties of undefined (reading 'map')
at J (manager-bundle.js:2:4580)
at manager-bundle.js:2:4877
at Array.map ()
at Q (manager-bundle.js:2:4863)
at renderWithHooks (chunk-B3YDJJJH.js:92:907)
at updateFunctionComponent (chunk-B3YDJJJH.js:96:14955)
at beginWork (chunk-B3YDJJJH.js:98:28838)
at HTMLUnknownElement.callCallback2 (chunk-B3YDJJJH.js:31:42734)
at Object.invokeGuardedCallbackImpl (chunk-B3YDJJJH.js:31:43261)
at invokeGuardedCallback (chunk-B3YDJJJH.js:31:44569)

Additional information

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[valentinpalkovic]

@ndelangen mentioning you here because you are currently working on globals. Maybe you have some insights.

[ndelangen]

Please show to code that's actually failing, there's something on the manager's side where you're calling .map.

Most likely you need to ensure that code is ran optionally, because globals start out undefined in the manager.