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