this has been discussed before, but parked, and, I fear, forgotten…
http://materialdesignicons.com/cdn/2.6.95/ scroll down and find the cool effects we could achieve the the helper class could be implemented. There has been a pull request, which is now closed because the HA component handling this has been rewritten.
Still the effects are so cool and could be a great addition to the HA frontend.
Please check once more?