I try to add (for every one or for one category it’s not very important) a CSS for timetable. Currently I show Default, Compact Style, Indico Style, Indico Style-inline minutes, Indico-weeks view. I would like to add a item on that list.
What I meant is that you need to write your own plugin that exposes your custom themes, and that this particular plugins is an example on how such a plugin looks like.