Whitlabeling Invite email

When manually creating users Timus send email invite.  I would like the ability to add my company logo and prehaps other details to add legitimacy to the emails being sent to the end user.  Currently only the company name is shown and the Timus company logo at the bottom.  This is causing confusion and or suspicion on clients who we need to use manual user creation.  The logical place I would think to do this would be in the Manager at a global level and perhaps an override for each site.