Then again, you could also do that in images. Especially if you have some graphic effects like feather, gradient and drop shadows, the advantage of client-side

Then again, you could also do that in images. Especially if you have some graphic effects like feather, gradient and drop shadows, the advantage of client-side rendering is not entirely clear. If anything, it makes the site heavier to render. (sure, you get scaling for "free" because it's vector, but in many cases you don't need to use the same icons in multiple sizes on the same device/page, so you could do that as well offline and simply fetch the right image...)