It would be great if Aspose.Slides provided support for adding to a slide and customizing the Powerpoint icons, which can be manually added in a slide using the Illustrations part of the Powerpoint 2019 ribbon using the Icons button next to the Shapes button.
I have tried understanding the requirements and have not been able to completely understand them. Can you please elaborate the requirements in the form of image depicting which feature is available in PowerPoint 2019 and that you like to have in Aspose.Slides.
I have observe the issue shared by you and have created an issue with ID SLIDESNET-41880 as new feature request to provide the requested support. This thread has been linked with the issue so that you may be notified once the feature will be available.
@yemoku,
Unfortunately, this feature will not be available until Aspose.Slides 21.8. This is the tentative time. Our development team does its best for our customers, but on a first-come, first-served basis. But you can increase the priority for this feature by contacting paid support.