Install the Linux Mint Themes and Icons on Arch Linux

mint_themes_install_arch_linux.md

Install required packages

sudo pacman -S git make ruby-sass

Keep everything together

mkdir mint cd mint

Clone the repository

git clone https://github.com/linuxmint/mint-themes.git cd mint-themes

Generate the theme files

make

Copy the files to the system themes folder

sudo cp -r usr/share/themes/* /usr/share/themes

cd ..

Clone Mint-X and Mint-Y icon repositories

git clone https://github.com/linuxmint/mint-y-icons.git git clone https://github.com/linuxmint/mint-x-icons.git

Put icon themes in system icons folder

sudo cp -r mint-x-icons/usr/share/icons/* /usr/share/icons sudo cp -r mint-y-icons/usr/share/icons/* /usr/share/icons

Cleanup

At this point you can delete the mint folder since you won't need it once the files have been copied.

If your having problems with this, try this solution:
Download sassc and python:
sudo pacman -S sassc python
Open the file "generate-themes.py" with a text editor, search for the word "pysassc" and replace it with the word "sassc", and run the command "make" again. Now just copy+paste the folders from "/home/YOURUSERNAME/mint/mint-themes/usr/share/themes/" to "/usr/share/themes/" Command:
sudo cp -r /home/YOURUSERNAME/mint/mint-themes/usr/share/themes/* /usr/share/themes/
Note:
You have to replace "YOURUSERNAME" with your user name. (Just making sure nobody missed that)
And for the icons, you can use the AUR build, since its not broken (mint-y-icons and mint-x-icons)
yay -S mint-y-icons
yay -S mint-x-icons