Install glue-sprite by entering the following commands in the terminal:
sudo apt update sudo apt install glue-sprite
Description:
Simple command line tool to generate CSS sprites
Glue is a simple command line tool to generate CSS sprites using any kind of source images like PNG, JPEG or GIF. Glue will generate a unique PNG file containing every source image and a CSS file including the necessary CSS classes to use the sprite.
Homepage: http://gluecss.com
Version: 0.13-2
Section: universe/graphics