DataGrid. How change backround color of header?

enter image description here
Need to remove repaint or remove this white background

<DataGrid
    rows={users}
    columns={columns}
    disableColumnMenu={true}
    hideFooter={true}
    loading={isLoading}
    autoHeight={true}
    sx={{
      boxShadow: 2,
      border: 2,
      borderColor: "#292524",
      "& .MuiDataGrid-cell": {
        color: "white",
        borderColor: "#292524",
      },
      "& .MuiDataGrid-columnHeader": {
        backgroundColor: "#0c0a09",
        color: "#75706c",
      }
    }}
/>

& .MuiDataGrid-columnHeader changes color, but only of inner header cells