The standard GNOME theme is very classic (Adwaita), because it is what they test and recommend, however, you can improve the look of your GNU/Linux by changing the theme and for a better experience.

How to install themes?

Recalling that it is interesting to have GNOME Tweaks installed, examples:

sudo emerge gnome-tweaks # Gentoo, Funtoo, ...
sudo apt install gnome-tweaks # Debian, Ubuntu, Mint, ...
sudo pacman -s gnome-tweaks # Arch, Manjaro, ...

And then follow these steps:

1. Download the theme, example:

You can download via http, git, via command line, or any other means you find

2. Unzip the file (if it is compressed):

We recommend you to use the application extract, it is simple and easy to use!

3. Move to your ~/.themes directory

If there is no such directory in your home folder, create: mkdir ~/.themes.

Attention: If within the theme you download there are * variants * within it, move the variants. The root folder has the index.theme file inside it directly.

4. Open GNOME Tweaks and choose the theme

Hit Alt + F2 and type: gnome-tweaks, or run this command in terminal

5. Choose the theme that appears:

Choose the line Applications, if you have not yet changed Adwaita (default), click and change to the name of the theme you want, see image below:

Alternatively you can change the theme via the command line using gsettings with the command:

gsettings set org.gnome.desktop.interface gtk-theme 'THEME-NAME'

Or by changing the vim ~/.config/gtk-3.0/settings.ini file and defining the theme in that file:

[Settings]
gtk-theme-name = "THEME-NAME"

I selected the 10 best ones that I tested currently according to the date of publication of this post, they are in the order of the ones I like the most!

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10. Fantasma

Download the Fantasma Theme

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09. Teja

Download Teja Theme

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08. Orchis

Download Orchis Theme

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07. Nordic

Download Nordic Theme

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06. Mint Aqua

Download Mint Aqua Theme

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05. Materia

Download Tema Materia

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04. Kimi

Download the Kimi Theme

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03. Juno

Download Juno Theme

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02. macOS Transparent

Download macOS Transparent Theme

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01 - Arc Theme

Download Arc Theme

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git clone https://github.com/terroo/terminalroot-themes
mkdir -p ~/.themes
mv terminalroot-themes/* ~/.themes

Useful links:

• https://www.gnome-look.org/
• https://www.mate-look.org/
• https://www.cinnamon-look.org/
• https://www.xfce-look.org/
• https://www.enlightenment-themes.org/
• https://store.kde.org/
• https://www.box-look.org/
• https://www.pling.com/

Thanks!