Could someone please give me the name of the default ZSH theme that Kali uses? Also, if you could please provide a link to it.
Kali Linux does not use a separate theme file for its zsh customizations. So you cannot download the Kali Linux zsh theme, drop it in
themes/, and set
ZSH_THEME to its name as you usually can in Oh My Zsh. Instead, the customizations are made to
.zshrc directly. You can inspect
.zshrc which is included into Kali Linux and choose what customizations you want.
Be careful to keep a backup of your existing
~/.zshrc. I also used
zsh -d -f; source /path/to/file as suggested and explained in another answer to test the configurations without replacing the existing configuration file at all.
Here is some further reading: