We're currently have the ability to do some branding - with the goal of making the system feel like it’s ours.
However, you have this lion favicon (on the browser tab) that has no context for our users and can leave them wondering if there is a problem with the browser, if they’ve been hacked/hijacked, etc. It really can really confuse some of them and create extra work.
This feels like and incomplete implementation or a missing feature. The favicon is a very visible component. The ability to change it exists in ProofHQ so it should also be possible in Workfront.