How do I add a custom widget to Developer Edition?

[AdamGebhart]

I'm struggling to find the directions for this.  I'm in Developer 1.18 and have downloaded  @Brian_McLeer's Advanced Draw widget as I'd like to use it in one or more of our apps.

I've extracted the .zip contents to ...\EXB_1.18\client\your-extensions\widgets but it's not showing up in ExB under Insert widget.  There isn't a 'Custom' section option.

What other step(s) do I need to complete?  

[Brian_McLeer]

Glad it worked for you @AdamGebhart, and to clarify the ownership of the widget from your original post, it is far from my creation as it was a collaboration with @JeffreyThompson2 , @RobertScheitlin__GISP and other community members input. Thank you for the notes about npm @JeffreyThompson2