Program icon used by Mailvelope composed of oxygen icons
Oxygen480-actions-edit-find-mail.svg Oxygen15.04.1-document-encrypt.svg https://github.com/mailvelope/mailvelope/blob/master/common/img/mail_locked_128.png
Nuno Pinheiro, David Vignoni, David Miller, Johann Ollivier Lapeyre, Kenneth Wimer, Riccardo Iaconelli – Oxygen team