In previous builds were introduced 40 Office themes and a new default theme, but there has also been work around the scenarios in which they apply :

- generation of new XLS files : unaffected since there is no such thing as a theme in the XLS file format

- generation of new XLSX files : theme settings stored, rendered and applied

- reading of XLS files : xlsgen chart renderer enforces the classic theme (i.e. Excel 2003 theme) unless told otherwise

- reading of XLSX files : xlsgen chart renderer enforces the stored theme unless told otherwise

- reading of XLSB files : xlsgen extracts the theme, renders and stores it unless told otherwise

- custom theme : round-tripping support, rendering support