import { experimental_extendTheme as extendTheme } from '@mui/material/styles'; const theme = extendTheme(); theme.getCssVar('palette-primary-main'); theme.getCssVar('palette-Alert-errorColor'); theme.getCssVar('opacity-inputPlaceholder'); theme.getCssVar('zIndex-appBar'); theme.getCssVar('shape-borderRadius'); theme.getCssVar('shadows-0'); theme.getCssVar('overlays-0'); // @ts-expect-error theme.getCssVar(); // @ts-expect-error theme.getCssVar(''); // @ts-expect-error theme.getCssVar('custom-color'); // @ts-expect-error theme.getCssVar('palette-primary-main', '');