Downloads uses <link rel="import" type="css"> to import CSS files into polymer elements. This style of import is deprecated [1] and will be removed in Polymer 2.0 [2].
We should move away from this to directly including stylesheets in element <template>s.
Comment 1 by dbeam@chromium.org
, Sep 27 2016Owner: dbeam@chromium.org
Status: Started (was: Available)