SVG.JS Logo

This is a logo I've designed for SVG.JS (http://www.svgjs.com/), a very lightweight Javascript library to work with SVG vector graphics.
One of our concerns was how this logo will scale when used as a favicon or an app icon. The solution was to keep the layout of the logo while adjusting the stroke width to match it. The result is the icon that is demonstrated at the bottom right. What do you think?