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rOACCT/node_modules/@mui/material/styles/responsiveFontSizes.js
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responsiveFontSizes.js
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			import _extends from "@babel/runtime/helpers/esm/extends";
			import { formatMuiErrorMessage as _formatMuiErrorMessage } from "@mui/utils";
			import { isUnitless, convertLength, responsiveProperty, alignProperty, fontGrid } from './cssUtils';
			export default function responsiveFontSizes(themeInput, options = {}) {
			const {
			breakpoints = ['sm', 'md', 'lg'],
			disableAlign = false,
			factor = 2,
			variants = ['h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'subtitle1', 'subtitle2', 'body1', 'body2', 'caption', 'button', 'overline']
			} = options;
			const theme = _extends({}, themeInput);
			theme.typography = _extends({}, theme.typography);
			const typography = theme.typography;

			// Convert between CSS lengths e.g. em->px or px->rem
			// Set the baseFontSize for your project. Defaults to 16px (also the browser default).
			const convert = convertLength(typography.htmlFontSize);
			const breakpointValues = breakpoints.map(x => theme.breakpoints.values[x]);
			variants.forEach(variant => {
			const style = typography[variant];
			const remFontSize = parseFloat(convert(style.fontSize, 'rem'));
			if (remFontSize <= 1) {
			return;
			}
			const maxFontSize = remFontSize;
			const minFontSize = 1 + (maxFontSize - 1) / factor;
			let {
			lineHeight
			} = style;
			if (!isUnitless(lineHeight) && !disableAlign) {
			throw new Error(process.env.NODE_ENV !== "production" ? `MUI: Unsupported non-unitless line height with grid alignment.
			Use unitless line heights instead.` : _formatMuiErrorMessage(6));
			}
			if (!isUnitless(lineHeight)) {
			// make it unitless
			lineHeight = parseFloat(convert(lineHeight, 'rem')) / parseFloat(remFontSize);
			}
			let transform = null;
			if (!disableAlign) {
			transform = value => alignProperty({
			size: value,
			grid: fontGrid({
			pixels: 4,
			lineHeight,
			htmlFontSize: typography.htmlFontSize
			})
			});
			}
			typography[variant] = _extends({}, style, responsiveProperty({
			cssProperty: 'fontSize',
			min: minFontSize,
			max: maxFontSize,
			unit: 'rem',
			breakpoints: breakpointValues,
			transform
			}));
			});
			return theme;
			}