RemixIconEx.System.settings_6

You're seeing just the function settings_6, go back to RemixIconEx.System module for more information.
Link to this function

settings_6(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.System.settings_6()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M17.5 2.474L23 12l-5.5 9.526h-11L1 12l5.5-9.526h11zm-1.155 2h-8.69L3.309 12l4.346 7.526h8.69L20.691 12l-4.346-7.526zM8.634 8.17l1.732-1 5 8.66-1.732 1-5-8.66z" />
</svg>

example usage

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