RemixIconEx.System.loader_2

You're seeing just the function loader_2, go back to RemixIconEx.System module for more information.
Link to this function

loader_2(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.System.loader_2()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M12 2a1 1 0 0 1 1 1v3a1 1 0 0 1-2 0V3a1 1 0 0 1 1-1zm0 15a1 1 0 0 1 1 1v3a1 1 0 0 1-2 0v-3a1 1 0 0 1 1-1zm10-5a1 1 0 0 1-1 1h-3a1 1 0 0 1 0-2h3a1 1 0 0 1 1 1zM7 12a1 1 0 0 1-1 1H3a1 1 0 0 1 0-2h3a1 1 0 0 1 1 1zm12.071 7.071a1 1 0 0 1-1.414 0l-2.121-2.121a1 1 0 0 1 1.414-1.414l2.121 2.12a1 1 0 0 1 0 1.415zM8.464 8.464a1 1 0 0 1-1.414 0L4.93 6.344a1 1 0 0 1 1.414-1.415L8.464 7.05a1 1 0 0 1 0 1.414zM4.93 19.071a1 1 0 0 1 0-1.414l2.121-2.121a1 1 0 1 1 1.414 1.414l-2.12 2.121a1 1 0 0 1-1.415 0zM15.536 8.464a1 1 0 0 1 0-1.414l2.12-2.121a1 1 0 0 1 1.415 1.414L16.95 8.464a1 1 0 0 1-1.414 0z" />
</svg>

example usage

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