Ok, that's great. Maybe it fixes the double/triple sized icons (Print for example) in event view too.
Hmm that has nothing todo with that - sounds like some bad Joomla template css. Do you have a link to a livesite? Try searching for .modal (which the print button and some others use) in the css, perhaps there are some wrong stylings for it.
Will the link to newsletter systems be "universal" or is your main goal to develop it with AcyMailing? My client was interested in jNews. But, I haven't done much comparing between those two yet..
I fear universal is not possible, but we are going to support more then AcyMailing (But this will be the first one) - jNews is also on my list. But we mostly plan writing a plugin (to show signup for newsletter checkbox during the booking (or automatically adding the mail and name after booking) and an additional name / e-mail sync with the existing bookings.
Was it so that in 2.2 there will be a possibility to send email to registered users about new events?
An automatic E-mail option notifying of new events to the registered users (or previous participants) is planned also, but for a later version (probably 2.3) and has nothing todo with the newsletter system integration's.
Best regards,
Yves