react-data-export Style on <ExcelColumn> while using "data" not "dataSet" on <ExcelSheet>

First of all, thanks for your great job, I love your data export!

My question: How do I set a style on "label" and "value" while using an <ExcelColumn> which is embraced by <ExcelSheet> while using "data", not a "dataSet"?

I know how to style headers and cells while using a "dataSet", you describe it here very well here: https://github.com/securedeveloper/react-data-export/blob/master/examples/styled_excel_sheet.md

But what I have is:

 <ExcelFile 
          element={<button className="btn btn-primary">Download as excel</button>} 
          filename="Excel" >
          <ExcelSheet data={filteredRows} name="Sheet1"> 
              <ExcelColumn label="id" value="id" /> 
              <ExcelColumn label="Firstname" value="firstname" /> 
              <ExcelColumn label="Surname" value="name" />
          </ExcelSheet>
 </ExcelFile>

So, how do I set styles on "label" and "value"? I have tried this (see below), but it doesn't work:

 <ExcelFile 
          element={<button className="btn btn-primary">Download as excel</button>} 
          filename="Excel" >
          <ExcelSheet data={filteredRows} name="Sheet1"> 
                <ExcelColumn label="id" value="id"  style={{font: {size: 24, bold: true}}}/> 
                <ExcelColumn label="Firstname" value="firstname"  style={{fontSize:20}}/> 
                <ExcelColumn label="Surname" value="name" width="50"/>
          </ExcelSheet>
 </ExcelFile>

Am I missing something or is this just not possible (yet)?