RemixIconEx.Others.door_open

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

door_open(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Others.door_open()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M2 21v-2h2V4.835c0-.484.346-.898.821-.984l9.472-1.722c.326-.06.638.157.697.483.007.035.01.07.01.107v1.28L19 4c.552 0 1 .448 1 1v14h2v2h-4V6h-3v15H2zM13 4.396L6 5.67V19h7V4.396zM12 11v2h-2v-2h2z" />
</svg>

example usage

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