Hi @kim!
I've noticed that you are exploring GS's frontend, having developed a theme, a plugin and now working on a new visual for the installer!
!gnusocial wants to get polished with a modern looking default theme but, due to the lack of devs, we are not expecting to have that much free time for actually doing it :/
Starting 4th of July, I'll prepare the installer for GNU social version 2.0.0 and it would be nice to include a new visual for its release :)
If you're interested in joining the dev team, contact us on:
#social@irc.freenode.org
#social-dev@irc.freenode.org
I would be happy to help you exploring and improving GS during this summer. :)
Happy hacking!