RemixIconEx.Media.play

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

play(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Media.play()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M16.394 12L10 7.737v8.526L16.394 12zm2.982.416L8.777 19.482A.5.5 0 0 1 8 19.066V4.934a.5.5 0 0 1 .777-.416l10.599 7.066a.5.5 0 0 1 0 .832z" />
</svg>

example usage

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