I'm actually working on a mod that will make the whole avatar system a lot easier for developers and non-developers. Here is a pic of the Events you can use:

Here is a picture of an output event that utilizes the Avatar designer system:

And designing an Avatar is simple due to how heavily documented the framework is, even a non developer can design one:

I also plan on adding in a simple Avatar designer similar to the Avatar picker in the options menu.
PS: This works on bots too.
