agave software package provides colorscheme designer for the GNOME desktop, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install agave
agave is installed in your system.
Make ensure the agave package were installed using the commands given below,
$ sudo dpkg-query -l | grep agave *
You will get with agave package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | GNOME |
| Package | agave |
| Version | 0.4.7-2.1ubuntu1 |
| Description | colorscheme designer for the GNOME desktop |
| Sub Section | GNOME |