Anyone know how different this is from Polymer's icons? http://www.polymer-project.org/components/core-icons/demo.html http://www.polymer-project.org/component

Anyone know how different this is from Polymer's icons? http://www.polymer-project.org/components/core-icons/demo.html http://www.polymer-project.org/components/core-icons/demo.ht... Many of them look similar - guessing Polymer is a large subset of this new repo?