Refering to the Treeview control for VSTS / TFS:
[https://learn.microsoft.com/en-us/vsts/extend/develop/ui-controls/treeviewo ]
Is there a list of icons for us to choose?
icon: "icon icon-people"
or is there a way to load our own images.
Example:
icon: "./images/sample.png"
Yes, icon-people
, icon-pause
such as this kind are all build-in icons of TFS/VSTS extension. You could find them in your TFS/VSTS page and you could also directly call them in your custom extension.
Unfortunately, we don't have the official full list of icons. You could refer this tutorial which contain some commonly used.
Load your own images is also support, the format just like you described above icon: "xx/images/sample.png"
, here is a extension which use his own icon in menu bar, take a look at the source code if you are interested in.