Substack icon
<svg width="24" height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="currentColor"><path d="M15 3.604H1v1.891h14v-1.89ZM1 7.208V16l7-3.926L15 16V7.208zM15 0H1v1.89h14z"/></svg><svg width="24" height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="currentColor"><path d="M15 3.604H1v1.891h14v-1.89ZM1 7.208V16l7-3.926L15 16V7.208zM15 0H1v1.89h14z"/></svg>