It’s always bothered me a little bit that the navbar icons weren’t actual icons. Ever since Cover v1.0, they’ve been and tags hacked together to look like icons. For Cover2, I used code generated by Transformicons, but it still bugged me. And now, here I am using nice SVGs for all the rest of the icons; surely I can use SVGs for the navbar icons and morph them. Well, now I am.
Source: Morphing SVGs | Eiche fam