In Nav, it’s possible to change the icon on a menu option, in order to make it clearer to the user. These are called “Action Images” in Nav 2009 or “Icon Collection” in Nav 2013 onwards. In the screenshot to the right I have highlighted an example of such an image.
Depending on the version of Nav, it is either a free text entry, or a lookup. But regardless of the version of Nav, unfortunately there’s no image preview. Hopefully this will be included in a future version.
Luckily, the full library of options available are available on the Microsoft’s website:
Unfortunately for Nav 2013, these are split across multiple pages. This post is a lift of all the images from the site above, but all on a single page to make it nice and easy to view and select the perfect icon for your page.
For up to date images, I recommend viewing the Microsoft articles above.