How to use "Project" and "Map" button icons from the Share tab in my Add-In?

Question

I want to use the icons for the Project and Map buttons from the ArcGIS Pro Share tab in my Add-In in the config.daml as such:

pack://application:,,,/ArcGIS.Desktop.Resources;component/Images/FileName32.png

But I can't find them listed here: DAML ID Reference Icons · Esri/arcgis-pro-sdk Wiki · GitHub

Are they available for use?

ChrisPowell2 · Accepted Answer

Looks like "ArcGIS.Desktop.Sharing.dll" isn't publicly accessible according to:

Home · Esri/arcgis-pro-sdk Wiki · GitHub

But I was able to find arcgis.desktop.sharing.dll at C:\Program Files\ArcGIS\Pro\bin\Extensions\Sharing and opened the ADSharing.daml file and Ctrl+F'd the button's caption and grabbed the reference from there: largeImage="pack://application:,,,/ArcGIS.Desktop.Resources;component/Images/ArcGISProjectPackage32.png"