AppStream is a metadata specification which permits software components to provide information about themselves to automated systems and end-users before the software is actually installed. This permits informative displays of new applications to users in software centers, as well as allowing a system to make decisions on which new software a user might want to install (e.g. missing firmware or media handlers).

PLplot is relatively small, portable, freely distributable, and is rich enough to satisfy most users. It has a wide range of plot types including line (linear, log), contour, 3D, fill, and almost 1000 characters (including Greek and mathematical) in its extended font set. The package is designed to make it easy to quickly get graphical output; only a handful of function calls is typically required. For more advanced use, virtually all aspects of plotting are configurable.

TruFont is a font-editing application written with Python3, ufoLib, defcon and PyQt5.

Dotgothic 16 is based on the old 16x16 Gothic bitmap font that can best recreate the feel of pixel fonts from old video games, cell phones and computer screens on print. With its high readability, this font has become more popular in recent years due to the growing popularity of pixel art.

This provides Qt objects of defcon in trufont font editor.