Please note that this is an incomplete test font for gathering
feedback on Arabic-script metrics only. It is NOT for distribution,
all rights are reserved and no permission is granted for distribution.

Please only use the PPA for testing, and try to avoid manual
installation: using the PPA allows new and final test versions to be
automatically pushed out when available.

Coverage:

Like Latin script, Arabic script is used for several languages:
Persian, Urdu, aswell as Arabic.

Test font:

The 0.83+arabic test font will appear as "Ubuntu Arab 0.81 met", which
is short for "Ubuntu Arabic 0.81 metrics test" and will need to be
manually selected in the application you're testing.  In order to get
it to people as quickly as possible the file is as-supplied by Dalton
Maag: It is "0.83 + arabic", versioned 0.000, labelled 0.81 and with
0.910 at the U+EFFD test-debug position.  It is fully appreciated
that this ambiguity is likely to cause communication difficulties in
performing Quality-Assurance and gathering feedback, however the desire
is to make this available quickly.

Scaling:

This test version is the same height as the existing Ubuntu fonts have
been since 2010.  In August 2015 a version with an 85%-scaled Arabic
was tested privately.  With some combinations of double-stacked Arabic
diacriticals in some applications clipping may occur when the
diacriticals extending off the top or bottom.  There is a trade-off
between clipping or scaling to fit.

The decision to return to 100% scaling for the Arabic-script coverage.
sizing was based on a private testing programme performed in August
2015 that showed a clear preference for retaining the ratio between
the Ubuntu Latin and Ubuntu Arabic sizing.  This size is very close to
DejaVu Sans Arabic, Ubuntu's traditional fallback Arabic script font
in the default user interface.