RemixIconEx.System.arrow_left_down

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

arrow_left_down(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.System.arrow_left_down()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M9 13.59l8.607-8.607 1.414 1.414-8.607 8.607H18v2H7v-11h2v7.585z" />
</svg>

example usage

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