How to add and modify applications in the slingshot launcher of elementaryOS

Open up a terminal and type:


sudo apt-get install --no-install-recommends alacarte

Now, we're going to make alacarte work with slingshot. Type this in a terminal:

sudo scratch-text-editor /usr/share/alacarte/Alacarte/MenuEditor.py

This will open up a text file. Hit ctrl+F to search for 'applications.menu' and replace all with 'pantheon-applications.menu' (you have to replace applications.menu twice in the file). When done, close the file.

Now start the menu editor by typing 'alacarte' in slingshot or in a terminal

Gdk Gtk warnings and errors from the command line

The Unable to locate theme engine in module_path: "pixmap" messages are a known bug.

To fix it, install the gtk2-engines-pixbuf  package