All Octicons
chevron-up
Octicon sizes navigation
React
import {ChevronUpIcon} from '@primer/octicons-react' <ChevronUpIcon size={12} />
Rails
<%= render(Primer::Beta::Octicon.new(:"chevron-up", size: :xsmall)) %>
Jekyll
{% octicon chevron-up height:12 %}
Figma
This icon is called chevron-up-12
in Primer's Octicons library.