Hi Misha, this is what I was looking for.
Thanks for your help.
I'm a little late to the party but this post here gives you a visual breakdown of the fairly recent icon refresh that was undertaken in v5 of Adapt.
You can find a breakdown of all the icons and what they are called by importing the selection.json file here into a free service called icomoon. This service lets you add additional icons as svgs as well as edit existing icons should you wish to customise them.