Пользовательская тема ChakraUI и Typescript

Question

Я новичок в смешанных ChakraUI и Typescript. Следуя ChakraUI DO C, я создал такой файл:

import { theme } from '@chakra-ui/core';

const customTheme = {
  ...theme,
  colors: {
    ...theme.colors,
    brand: {
      900: '#1a365d',
      800: '#153e75',
      700: '#2a69ac',
    },
  },
};

export default customTheme;

К сожалению, на customTheme я избавился от этих ошибок:

Exported variable 'customTheme' has or is using name 'ZIndices' from external module "/Users/username/project-test/node_modules/@chakra-ui/core/dist/theme/index" but cannot be named.ts(4023)
Exported variable 'customTheme' has or is using name 'Radii' from external module "/Users/username/project-test/node_modules/@chakra-ui/core/dist/theme/index" but cannot be named.ts(4023)
Exported variable 'customTheme' has or is using name 'Opacity' from external module "/Users/username/project-test/node_modules/@chakra-ui/core/dist/theme/index" but cannot be named.ts(4023)
Exported variable 'customTheme' has or is using name 'Borders' from external module "/Users/username/project-test/node_modules/@chakra-ui/core/dist/theme/index" but cannot be named.ts(4023)

Есть подсказка? Использование: TS: последняя версия ChakraUI: последняя версия

Заранее спасибо