I'm the developer of an online logbook for pilots.  For years, I've had oAuth2 support to allow users to back up their data to Dropbox, Google Drive, and OneDrive.  I'd like to add Box.com as an option.  The technical piece of this is pretty straightforward - but one thing I need is a Box.com logo that I can use in the UI where people set up the oAuth connection.  Dropbox, Onedrive, and Google Drive all grant permission to use - and provide approved logos! - for this legitimate purpose (with conditions, of course!). I can't find anything about how to do this with Box.