Thanks for the hard work of Joomla Team, users can try out the latest version of Joomla, Joomla 4.
One of the significant change in Joomla 4 is the new backend and frontend template. With this new enhancement, it brings a premium look to your control panel and friendly experience.
Let's see the improvement.
The backend template
The back-end interface has been changed in Joomla 4. The big improvement is the position of the menu. Instead of keeping the horizontal menu, Joomla 4 has switched the menu vertically.
Joomla 3 has 2 back-end templates which are Hathor and Isis.
Joomla 4 has a new back-end template named Atum which comes with great improvements in the user interface and some interesting features like the new publishing workflow.
The frontend template
Comparing the two pictures below, you might agree that the Joomla 4 front-end design has a cleaner and more elegant look than the old one version
Joomla 3 has 2 front-end templates which are Beez3 and Protostar.
Joomla 4 has only Cassiopeia as the front-end template in which the user interface is developed based on Bootstrap 4 and the layout is developed based on CSS Grid.
To read more the differences between Joomla 3 and Joomla 4, please feel free to click on the link here.