I was just about to ask this, and I'm glad that someone else did. SVG is not tied to any one programming language. I don't understand why the repo tied to this page is not just a folder of icons and perhaps another folder of CSS.
There are some reasons. I'll try to describe them shortly.
Usually it is important to color and resize the icons depending on situation. That's why you can't just put the SVG into your project. And that's why we decided to make a sprite and to use inline SVG.
But raw inline SVG isn't the most convenient way of SVG graphics using. That's why we have written a couple of helpers.
