In October CMS the theme folder is lacking a
theme.php kind of controller. In fact there is not a single PHP file in the theme folder which you can cling on to.
The reason that this a bit of letdown is because we want to have a selection of (blog) categories from the Rainlab Blog plugin that we can select from and connect this to the theme's settings to select from.
To have a work around this is the path that we need to follow: