When comparing Arc vs XGnome Enhanced , the Slant community recommends Arc for most people. In the question“What are the best Gnome Shell themes?” Arc is ranked 1st while XGnome Enhanced is ranked 11th.
Ranked in these QuestionsQuestion Ranking
Pro Customizable to dark or light themes
Pro Has both GTK2 and GTK 3 support
Users will be able to match their gtk2 and gtk3 themes easily due to Arc supporting both.
Pro Supports gnome-shell
Pro Available firefox and chromium themes
There are matching themes for Firefox and Chromium for those that want to have a fully matched looking environment.
Pro Really clean and nice-looking
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 Supports many versions of Gnome Shell
XGnome Enhanced supports Gnome Shell versions going all the way back to Gnome Shell 3.6.
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.
Con Bleak font colors that cause eye strain
The font color in Arc and Arc-Darker is not black, but lightgray
after prolonged usage, it becomes apparent that this font color, combined with white backgrounds causes too much eye strain
Con Has some contrast issues
The theme is a low contrast theme so it really depends on the screen brightness if you see borders or the text, some elements don't even have borders - this makes the theme barely usable for portable devices.
Con PPA does not work
For example, you'd get errors like "Unable to locate package xgnome-enhanced-gs."