PowerPoint added native capability for picture transparency (*without having to create a shape*) [in late 2018](http://www.thepowerpointblog.com/image-transparency/). See that linked article to see what I mean.

I'm trying to figure out what/if an appropriate VBA object exists for it (there's not much online since it's a fairly new feature). I've tried the traditional [FillFormat.Transparency object](https://learn.microsoft.com/en-us/office/vba/api/powerpoint.fillformat.transparency), as well as a few other analogous attempts. (Basically, have been searching the VBA documentation up and down for an hour or two).

Any thoughts?