Is it possible to prevent fpspreadsheet to remove the color of worksheets tabs?

[Mixcoatl]

Hi

I've written a routine which extracts data from an excel workbook and creates an import file for an financial application.
To register which rows has been extracted, i add a md5 hashcode in a column of each row of the source file. The source file is a XLSX type and i open it with the option [boReadFormulas].
After saving and closing the source file, the colors of all worksheet tabs are gone and all hidden rows are unhidden.
Is there an option to keep the formatting of the worksheet tabs unchanged?

Regards