@mui/joy/modern/styles/shouldSkipGeneratingVar.js

Joy UI is an open-source React component library that implements MUI's own design principles. It's comprehensive and can be used in production out of the box.

export default function shouldSkipGeneratingVar(keys) {
  return !!keys[0].match(/^(typography|variants|breakpoints)$/) || !!keys[0].match(/sxConfig$/) ||
  // ends with sxConfig
  keys[0] === 'palette' && !!keys[1]?.match(/^(mode)$/) || keys[0] === 'focus' && keys[1] !== 'thickness';
}