RemixIconEx.System.settings_3

You're seeing just the function settings_3, go back to RemixIconEx.System module for more information.
Link to this function

settings_3(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.System.settings_3()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M3.34 17a10.018 10.018 0 0 1-.978-2.326 3 3 0 0 0 .002-5.347A9.99 9.99 0 0 1 4.865 4.99a3 3 0 0 0 4.631-2.674 9.99 9.99 0 0 1 5.007.002 3 3 0 0 0 4.632 2.672c.579.59 1.093 1.261 1.525 2.01.433.749.757 1.53.978 2.326a3 3 0 0 0-.002 5.347 9.99 9.99 0 0 1-2.501 4.337 3 3 0 0 0-4.631 2.674 9.99 9.99 0 0 1-5.007-.002 3 3 0 0 0-4.632-2.672A10.018 10.018 0 0 1 3.34 17zm5.66.196a4.993 4.993 0 0 1 2.25 2.77c.499.047 1 .048 1.499.001A4.993 4.993 0 0 1 15 17.197a4.993 4.993 0 0 1 3.525-.565c.29-.408.54-.843.748-1.298A4.993 4.993 0 0 1 18 12c0-1.26.47-2.437 1.273-3.334a8.126 8.126 0 0 0-.75-1.298A4.993 4.993 0 0 1 15 6.804a4.993 4.993 0 0 1-2.25-2.77c-.499-.047-1-.048-1.499-.001A4.993 4.993 0 0 1 9 6.803a4.993 4.993 0 0 1-3.525.565 7.99 7.99 0 0 0-.748 1.298A4.993 4.993 0 0 1 6 12c0 1.26-.47 2.437-1.273 3.334a8.126 8.126 0 0 0 .75 1.298A4.993 4.993 0 0 1 9 17.196zM12 15a3 3 0 1 1 0-6 3 3 0 0 1 0 6zm0-2a1 1 0 1 0 0-2 1 1 0 0 0 0 2z" />
</svg>

example usage

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