<s>
Lumina	B-Application
Desktop	I-Application
Environment	I-Application
,	O
or	O
simply	O
Lumina	B-Application
,	O
is	O
a	O
plugin-based	O
desktop	O
environment	O
for	O
Unix	B-Application
and	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
.	O
</s>
<s>
It	O
is	O
designed	O
specifically	O
as	O
a	O
system	O
interface	O
for	O
TrueOS	B-Application
,	O
and	O
systems	O
derived	O
from	O
Berkeley	B-Operating_System
Software	I-Operating_System
Distribution	I-Operating_System
(	O
BSD	B-Operating_System
)	O
in	O
general	O
,	O
but	O
has	O
been	O
ported	O
to	O
various	O
Linux	B-Application
distributions	I-Application
.	O
</s>
<s>
Created	O
in	O
2012	O
by	O
Ken	O
Moore	O
,	O
Lumina	B-Application
was	O
initially	O
a	O
set	O
of	O
extensions	O
to	O
Fluxbox	B-Language
,	O
a	O
stacking	B-Device
window	I-Device
manager	I-Device
for	O
the	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
.	O
</s>
<s>
By	O
late	O
2013	O
,	O
Moore	O
had	O
developed	O
a	O
graphical	O
overlay	O
for	O
Fluxbox	B-Language
based	O
on	O
Qt4	B-Language
,	O
and	O
had	O
created	O
a	O
utility	B-Application
for	O
"	O
launching	O
applications	O
and	O
opening	O
files	O
"	O
.	O
</s>
<s>
The	O
codebase	B-General_Concept
was	O
integrated	O
into	O
the	O
PC-BSD	B-Application
source	O
repository	B-General_Concept
by	O
early	O
2014	O
,	O
and	O
a	O
port	O
was	O
added	O
to	O
the	O
FreeBSD	B-Application
Ports	I-Application
collection	I-Application
in	O
April	O
2014	O
.	O
</s>
<s>
The	O
source	O
code	O
has	O
since	O
been	O
moved	O
to	O
a	O
separate	O
GitHub	B-Application
repository	B-General_Concept
"	O
under	O
the	O
PC-BSD	B-Application
umbrella	O
"	O
and	O
converted	O
to	O
use	O
Qt5	O
.	O
</s>
<s>
Development	O
also	O
focused	O
on	O
replacing	O
the	O
Fluxbox	B-Language
core	O
with	O
a	O
Qt-based	O
window	B-Application
manager	I-Application
integrated	O
with	O
the	O
Lumina	B-Application
desktop	O
.	O
</s>
<s>
The	O
project	O
avoids	O
use	O
of	O
Linux-based	O
tools	O
or	O
frameworks	O
,	O
such	O
as	O
D-Bus	B-Language
,	O
Polkit	B-Language
,	O
and	O
systemd	B-Application
.	O
</s>
<s>
The	O
default	O
panel	O
includes	O
a	O
Start	O
menu	O
,	O
task	B-General_Concept
manager	I-General_Concept
,	O
and	O
system	O
tray	O
,	O
and	O
its	O
location	O
can	O
be	O
customized	O
.	O
</s>
<s>
Some	O
features	O
are	O
specific	O
to	O
TrueOS	B-Application
,	O
including	O
hardware	O
control	O
of	O
screen	O
brightness	O
(	O
monitor	O
backlight	O
)	O
,	O
preventing	O
shutdown	O
of	O
an	O
updating	O
system	O
,	O
and	O
integration	O
with	O
various	O
TrueOS	B-Application
utilities	O
.	O
</s>
<s>
Utilities	O
include	O
:	O
Insight	O
,	O
a	O
file	B-Application
manager	I-Application
;	O
File	B-Operating_System
information	O
,	O
which	O
reports	O
a	O
file	B-Operating_System
's	O
format	O
and	O
other	O
details	O
;	O
and	O
Lumina	B-Application
Open	O
,	O
a	O
graphical	O
utility	B-Application
to	O
launch	O
applications	O
based	O
on	O
the	O
selected	O
file	B-Operating_System
or	O
folder	B-Application
.	O
</s>
<s>
The	O
PDF	B-Application
reader	O
lumina-pdf	O
is	O
based	O
on	O
the	O
poppler	B-Language
library	O
.	O
</s>
<s>
The	O
Lumina	B-Application
Theme	B-Application
Engine	O
replaced	O
an	O
earlier	O
theme	B-Application
system	O
;	O
it	O
enables	O
a	O
user	O
to	O
configure	O
the	O
desktop	O
appearance	O
and	O
functionality	O
,	O
and	O
ensures	O
all	O
Qt5	O
applications	O
"	O
present	O
a	O
unified	O
appearance	O
"	O
.	O
</s>
<s>
Lumina	B-Application
has	O
been	O
ported	O
to	O
various	O
BSD	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
and	O
Linux	B-Application
distributions	I-Application
.	O
</s>
