Nothing major but if some of you would want to have the Staff Unique ID in the inbox headline like in the picture below to be able to edit the faces of all the staff, just download the attached inbox_item.xml and copy/paste it to the skin folder/panels/human and rewrite the existing file. (Or backup the original one first). And restart the game.
You will see the Unique ID of the Chairperson, Personal Assistant and more staff members whose profile, and the Unique ID, is not possible to see. That means you can create the same line within the config file as for players or other staff members.
<record from="name of your picture" to="graphics/pictures/person/r-ID of the staff/portrait"/>
This is what I'm using in this mine skin but I don't think another update is needed so you can update it by yourself if you want.
inbox item.xml
Thanks, @BouFitty for this idea. You can simply highlight the ID number and copy it as any other text. The only change I made is that I'm not using the date of birth widget as it's not needed with the traditional config.