@mui/material/styles/responsiveFontSizes.d.ts

Material UI is an open-source React component library that implements Google's Material Design. It's comprehensive and can be used in production out of the box.

import { Breakpoint } from '@mui/system';
import { TypographyVariants } from "./createTypography.js";
export interface ResponsiveFontSizesOptions {
  breakpoints?: Breakpoint[];
  disableAlign?: boolean;
  factor?: number;
  variants?: Array<keyof TypographyVariants>;
}
export default function responsiveFontSizes<T extends {
  typography: TypographyVariants;
}>(theme: T, options?: ResponsiveFontSizesOptions): T;