<s>
Openbox	B-Language
is	O
a	O
free	B-Application
,	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
licensed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
Originally	O
derived	O
from	O
Blackbox	B-Device
0.65.0	O
(	O
a	O
C++	B-Language
project	O
)	O
,	O
Openbox	B-Language
has	O
been	O
completely	O
re-written	O
in	O
the	O
C	B-Language
programming	I-Language
language	I-Language
and	O
since	O
version	O
3.0	O
is	O
no	O
longer	O
based	O
upon	O
any	O
code	O
from	O
Blackbox	B-Device
.	O
</s>
<s>
Since	O
at	O
least	O
2010	O
,	O
it	O
has	O
been	O
considered	O
feature	O
complete	O
,	O
bug	O
free	B-Application
and	O
a	O
completed	O
project	O
.	O
</s>
<s>
Openbox	B-Language
is	O
designed	O
to	O
be	O
small	O
,	O
fast	O
,	O
and	O
fully	O
compliant	O
with	O
the	O
Inter-Client	B-Operating_System
Communication	I-Operating_System
Conventions	I-Operating_System
Manual	I-Operating_System
(	O
ICCCM	B-Operating_System
)	O
and	O
Extended	B-Application
Window	I-Application
Manager	I-Application
Hints	I-Application
(	O
EWMH	B-Application
)	O
.	O
</s>
<s>
Openbox	B-Language
is	O
the	O
standard	O
window	O
manager	O
in	O
LXDE	B-Language
and	O
LXQt	B-Language
,	O
and	O
is	O
used	O
in	O
Linux	B-Application
distributions	I-Application
such	O
as	O
BunsenLabs	O
,	O
ArchBang	O
,	O
Lubuntu	B-Application
,	O
Trisquel	B-Application
and	O
Manjaro	B-Application
.	O
</s>
<s>
The	O
creator	O
and	O
primary	O
author	O
of	O
Openbox	B-Language
is	O
Dana	O
Jansens	O
of	O
Carleton	O
University	O
in	O
Ottawa	O
,	O
Ontario	B-Architecture
,	O
Canada	O
.	O
</s>
<s>
Openbox	B-Language
provides	O
a	O
right-click	O
(	O
or	O
any	O
other	O
key-binding	O
)	O
"	O
root	O
menu	O
"	O
on	O
the	O
desktop	O
,	O
and	O
allows	O
users	O
to	O
configure	O
the	O
way	O
windows	O
are	O
managed	O
.	O
</s>
<s>
Extending	O
Openbox	B-Language
with	O
other	O
small	O
programs	O
that	O
add	O
icons	O
,	O
taskbars	O
,	O
launchers	O
,	O
eyecandy	O
and	O
others	O
is	O
common	O
.	O
</s>
<s>
Openbox	B-Language
has	O
a	O
dynamic	O
menu	O
system	O
that	O
uses	O
"	O
pipe	O
menus	O
"	O
.	O
</s>
<s>
A	O
menu	O
item	O
in	O
a	O
piped	O
menu	O
system	O
can	O
accept	O
the	O
standard	O
output	O
of	O
a	O
shell	B-Language
script	I-Language
(	O
or	O
other	O
executable	O
)	O
in	O
order	O
to	O
generate	O
a	O
sub-menu	O
.	O
</s>
<s>
Because	O
the	O
script	O
runs	O
every	O
time	O
the	O
pointer	O
activates	O
it	O
,	O
and	O
because	O
the	O
script	O
can	O
assess	O
environmental	O
conditions	O
,	O
piped	O
menus	O
enable	O
conditional	B-Language
branching	I-Language
to	O
be	O
built	O
into	O
the	O
menu	O
system	O
.	O
</s>
