If you’ve been running the Ubuntu 8.04 Beta, you’ll have noticed that the default theme has been changed from the new Human-Murrine back to the same Human theme from previous releases.

The last few Alpha releases of Ubuntu 8.10 have been a bit controversial because of the dark brown theme, called NewHuman, that it was shipping by default. Good news for those of you who weren’t too fond of that theme… it’s no longer default in Alpha 4!

There have been promises of an overhaul to Ubuntu's default theme for quite some time. Ubuntu 9.10, set to be released at the end of this month, will begin delivering on those promises.  Below, we take a look at the new system theme and artwork that will debut in Karmic Koala.

Nodoka is the new Fedora default theme for Gnome. It currently contains gtk engine, gtk theme, metacity theme and gnome meta theme .If you want to install nodoka theme in Ubuntu follow this procedure.

This is a theme pack which was inspired after Radiance Light-theme proposition. All the metacity and the gtk is available.

This is a version of Ubuntu Sun that changes depending on time of day. It contains parts of Ubuntu Sun theme, Ubuntu Sun X theme and a script originally created for New Wave Chronos theme and adapted for Ubuntu Sun.

Ubuntu just released the beta 1 version of their new LTS (Long Term Support) Distribution, Lucid 10.04. The theme is based on "light" and it looks great. Here's what to expect and what not to expect when you first install this new flavor of Ubuntu: The first thing you notice when you launch the live CD is Ubuntu's new logo.

Let’s get rid of competition with a feminine theme. Ubuntu community is brainstorming about the chance to ship a feminine theme with Ubuntu.

Clearlooks has been the default theme in a number of distros thanks to its place as Gnome's default. Aiming to give Fedora its own distinct and modern appearance is Nodoka: based on its own theme engine it's extremely fast, and when seen in combination with the rest of the artwork for Fedora 8 is beautiful.