All Octicons
stack
Octicon sizes navigation
React
import {StackIcon} from '@primer/octicons-react' <StackIcon size={24} />
Rails
<%= render(Primer::Beta::Octicon.new(:stack, size: :medium)) %>
Jekyll
{% octicon stack height:24 %}
Figma
This icon is called stack-24
in Primer's Octicons library.