Doubt

So, the one on the left is definitely a custom visual, perhaps a Visio custom visual but probably not. Could be something that was custom written and not in the gallery. One on the right could also be a custom visual but you could use a bar chart visual for that.

One on the left is definitely not a "stock" visual and may or may not be in the gallery of custom visuals. As you can see in the picture you just posted, everything after the "R" is a custom visual that was imported. So, you might be able to match up the icons with custom visuals in the custom visual gallery...maybe.