[horde] howto choose / create themes?

[Markus Krause]

hello all!

how can i choose one of the predefined themes, or even better, where can
i find information on how to create a custom one?
is it possible to create a theme, use only this for the whole system
(i.e. the users can not change the theme? well, i don't know how to do
this right now anyway but maybe some of the users here are more smart!)

thanks in advance for any hints!

	markus