I am following the tutorial on Our Umbraco to learn about how it works. I'm stuck on a certain step.

https://our.umbraco.org/documentation/Tutorials/Creating-Basic-Site/Creating-Master-Template-Part-2

I've created a master page. Now I'm creating pages that build off that master page. What I'm confused about is this step

Go to Settings > Document Types (hover) > ... > + Create > Document Type . Let's create one called "Simple Content Page".

Firstly let's select an Icon - type the word "Content" into the filter and select the document icon. In description type "A simple content page". Click Save.

So I've done the first part, and I'm looking at this screen but I don't see what it means by

'select an icon'

Am I supposed to hit save? What filter is it talking about? What do I do now?

Any help will be greatly appreciated.