How can I override selected tokens for all themes?

[LucianVoju]

In my project, I need to have custom colors for each theme.
For example:

@use '@carbon/react/scss/theme' with (
  $white: (
    background: #e2e2e2,
    text-primary: #ffffff,
    custom-token-01: #000000,
    button-primary:#fff
  )
);

and

@use '@carbon/react/scss/theme' with (
  $g90: (
    background: #e2e2e2,
    text-primary: #ffffff,
    custom-token-01: #000000,
    button-primary:#fff
  )
);

is it possible?

I saw this example:

@use '@carbon/react/scss/themes';
@use '@carbon/react/scss/components/button/tokens' with (
  $button-primary: (
    fallback: #3f51b5,
    values: (
      (theme: themes.$white, value: #3f51b5),
      (theme: themes.$g10, value: #d55bff),
      (theme: themes.$g90, value: #d0b2ff),
      (theme: themes.$g100, value: #cfd2ff),
    ),
  )
);

@use '@carbon/react/scss/reset';
@use '@carbon/react/scss/components/button';

But what do I import in order to change the background?

Thanks,