... and how to create custom tabs
How to Make Custom Ribbons in Excel VBA
https://wellsr.com/vba/2019/excel/how-to-make-custom-vba-ribbons-in-excel/
https://docs.microsoft.com/en-us/openspecs/office_standards/ms-customui2/daabc2cd-b3f5-4d32-9099-95d705f70f35
Chapter 11: Creating Dynamic Ribbon Customizations (1 of 2)
https://docs.microsoft.com/en-us/previous-versions/office/developer/office-2007/dd548010(v=office.12)
Updating Ribbon Label at Runtime
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/8962f2b5-9b5b-4a4c-a744-dd6cd4988bd8/updating-ribbon-label-at-runtime?forum=exceldev
https://bettersolutions.com/vba/ribbon/run-time-changes.htm
https://bettersolutions.com/vba/ribbon/icons.htm
https://bettersolutions.com/vba/ribbon/icon-gallery-2007.htm
This is a list of imageMSO values and associated pictures.
https://bert-toolkit.com/imagemso-list.html
Office Excel ImageMso Gallery Icons with ScreenTips
https://www.spreadsheet1.com/office-excel-ribbon-imagemso-icons-gallery-page-01.html