gnome-paint is a program inspired by MS Paint and designed for GNOME (and maybe other) desktop environment. It could be used to manipulate images in a very simple way. With a very friendly user interface, gnome-paint is easy to get started for new users.

This transitional package allows one to migrate to kde-spectacle.

You can quickly view and filter arbitrary TTF, TTC, OTF or Type1 font files and then gather them together into 'pogs' which can be installed or removed as needed. In this way you control which fonts are installed on a per-project basis. It is written in Python and WxWidgets.

With Step you can not only learn but feel how physics works. You place some bodies on the scene, add some forces such as gravity or springs, then click "Simulate" and Step shows you how your scene will evolve according to the laws of physics. You can change every property of bodies/forces in your experiment (even during simulation) and see how this will change evolution of the experiment.

This is a metapackage which installs the whole set of plugins for Geany.

Gqrx works with hardware supported by gr-osmosdr, including Funcube Dongle, RTL-SDR, Airspy, HackRF, BladeRF, RFSpace, USRP and SoapySDR.