User manual

Source: http://site.icu-project.org/home
pixman (0.19.6)
Pixman is a low-level software library for pixel manipulation,
providing features such as image compositing and trapezoid
rasterization.
Source: http://www.pixman.org/
pango (1.28.1)
Pango is a library for laying out and rendering of text, with an
emphasis on internationalization.
Source: https://www.pango.org/
glib (2.24.2)
GLib provides the core application building blocks for libraries
and applications written in C.
Source: https://directory.fsf.org/wiki/Glib
DFB (1.4.2)
DirectFB is a thin library that provides hardware graphics
acceleration, input device handling and abstraction, integrated
windowing system with support for translucent windows and
multiple display layers, not only on top of the Linux
Framebuffer Device. It is a complete hardware abstraction
layer with software fallbacks for every graphics operation that
is not supported by the underlying hardware. DirectFB adds
graphical power to embedded systems and sets a new
standard for graphics under Linux.
Source: http://directfb.org/
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