I've installed a test version of Flarum, before installing my own site I have been using the test version over at devflarum.xyzz.work. I have the same extensions active as that version. However, the test version has an email tab down the left and has much more customisation in the appearance tab which my install does not.
In my appearance tab I have the ability to change the colours and custom styles. In the test version I have been using it also has the ability to change the logo, favicon and a custom header. There is no "email" tab on my version at all.
What is the reason for this difference? And how do I go about getting these features on mine?