pngquant
mkdir ~tmp
cd ~tmp
wget https://github.com/pornel/pngquant/tarball/master
tar xzf master
cd pornel.......
make
sudo make install
total 80 drwxr-xr-x 3 shwupsch psacln 4096 Apr 16 15:50 . drwxrwxrwt 3 root root 4096 Apr 16 15:50 .. drwxr-xr-x 7 shwupsch psacln 4096 Mar 28 03:10 kornelski-pngquant-5b4e91f -rw-r--r-- 1 shwupsch psacln 66931 Apr 16 15:50 master total 80 drwxr-xr-x 3 shwupsch psacln 4096 Apr 16 15:50 . drwxrwxrwt 3 root root 4096 Apr 16 15:50 .. drwxr-xr-x 7 shwupsch psacln 4096 Mar 28 03:10 kornelski-pngquant-5b4e91f -rw-r--r-- 1 shwupsch psacln 66931 Apr 16 15:50 master