- Parse workbook default theme for custom theme color support in the feature
- Variables name typo fix
- Add system foreground and background color as RGB in the IndexedColorMapping list
Added two exported functions `SetWorkbookPrOptions` and `GetWorkbookPrOptions` to support setting and getting the code name property of the workbook
Re-order fields of the workbook properties group to improve the compatibility
Go Modules dependencies upgrade
Put workbook related operating in new `workbook.go` source code
Library introduction docs block updated
xuri