How to change themes / Home Page from snap install


I’m running Gitea on Ubuntu 20.10 and I would like to customize the theme / home page /etc. I installed Gitea from the Snap Store. I need to do some customization on the theme and the home page. My questions are:

  1. Will this require a rebuild of Gitea?
  2. I looked where Gitea reports my CustomPath is, but the folders are empty. Do I need to set up folders, and if so what and where?