godot/scene/theme/icons/bookmark.svg

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><g fill="#fefffe" fill-opacity=".85"><path d="M14.5 1.5h-13v13L8 9.25l6.5 5.25z"/><path stroke="#fefffe" stroke-linejoin="round" stroke-opacity=".85" d="M14.5 1.5h-13v13L8 9.25l6.5 5.25z"/></g></svg>