RemixIconEx.Weather.celsius

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

celsius(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Weather.celsius()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M4.5 10a3.5 3.5 0 1 1 0-7 3.5 3.5 0 0 1 0 7zm0-2a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3zM22 10h-2a4 4 0 1 0-8 0v5a4 4 0 1 0 8 0h2a6 6 0 1 1-12 0v-5a6 6 0 1 1 12 0z" />
</svg>

example usage

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