如何消除Material UI Chip组件中的悬停、活动、聚焦灰色

.MuiChip-root:hover,
.MuiChip-root:active,
.MuiChip-root:focus {
  background-color: transparent !important;
}

import { createMuiTheme, ThemeProvider } from '@material-ui/core/styles';

const theme = createMuiTheme({
  overrides: {
    MuiChip: {
      root: {
        '&:hover, &:active, &:focus': {
          backgroundColor: 'transparent',
        },
      },
    },
  },
});

function App() {
  return (
    <ThemeProvider theme={theme}>
      {/* Your app code */}
    </ThemeProvider>
  );
}