When comparing XGnome Enhanced vs clearlooks-phenix, the Slant community recommends clearlooks-phenix for most people. In the question“What are the best gtk3 themes?” clearlooks-phenix is ranked 11th while XGnome Enhanced is ranked 12th. The most important reason people chose clearlooks-phenix is:
This theme has a good text and border contrast.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Supports many versions of Gnome Shell
XGnome Enhanced supports Gnome Shell versions going all the way back to Gnome Shell 3.6.
Pro Offers PPA for easy install on Ubuntu
There is an optional PPA for easy install on Ubuntu.
sudo add-apt-repository ppa:noobslab/themes && sudo apt-get update && sudo apt-get install xgnome-enhanced-gs
Pro Designed to be modern and minimal
The XGnome Enhanced theme is deigned to be modern and minimal. It is a very dark theme with clean lines.
Pro Good contrast
This theme has a good text and border contrast.
Pro Available everywhere
Clearlooks was basically ported to almost every OS or device so you can even make your virtual guest OS look like your host OS.
Cons
Con PPA does not work
For example, you'd get errors like "Unable to locate package xgnome-enhanced-gs."