RemixIconEx.Device.rss

You're seeing just the function rss, go back to RemixIconEx.Device module for more information.
Link to this function

rss(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Device.rss()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M3 17a4 4 0 0 1 4 4H3v-4zm0-7c6.075 0 11 4.925 11 11h-2a9 9 0 0 0-9-9v-2zm0-7c9.941 0 18 8.059 18 18h-2c0-8.837-7.163-16-16-16V3z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}