RemixIconEx.Health.heart_3

You're seeing just the function heart_3, go back to RemixIconEx.Health module for more information.
Link to this function

heart_3(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Health.heart_3()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M16.5 3C19.538 3 22 5.5 22 9c0 7-7.5 11-10 12.5C9.5 20 2 16 2 9c0-3.5 2.5-6 5.5-6C9.36 3 11 4 12 5c1-1 2.64-2 4.5-2zm-3.566 15.604c.881-.556 1.676-1.109 2.42-1.701C18.335 14.533 20 11.943 20 9c0-2.36-1.537-4-3.5-4-1.076 0-2.24.57-3.086 1.414L12 7.828l-1.414-1.414C9.74 5.57 8.576 5 7.5 5 5.56 5 4 6.656 4 9c0 2.944 1.666 5.533 4.645 7.903.745.592 1.54 1.145 2.421 1.7.299.189.595.37.934.572.339-.202.635-.383.934-.571z" />
</svg>

example usage

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