<s>
sushi	B-Application
is	O
a	O
file	O
previewer	O
for	O
the	O
GNOME	B-Application
desktop	I-Application
environment	I-Application
.	O
</s>
<s>
It	O
is	O
available	O
as	O
a	O
standalone	O
package	O
that	O
integrates	O
with	O
GNOME	B-Language
Files	I-Language
(	O
formerly	O
named	O
Nautilus	B-Language
)	O
.	O
</s>
<s>
sushi	B-Application
was	O
first	O
introduced	O
in	O
GNOME	B-Application
Shell	O
3.2	O
.	O
</s>
<s>
Its	O
sole	O
purpose	O
is	O
the	O
ability	O
to	O
preview	O
files	O
in	O
Nautilus	B-Language
,	O
which	O
can	O
be	O
invoked	O
by	O
hitting	O
the	O
spacebar	O
while	O
selecting	O
a	O
file	O
.	O
</s>
<s>
sushi	B-Application
's	O
abilities	O
extend	O
from	O
the	O
GStreamer	B-Language
framework	O
,	O
enabling	O
the	O
playback	O
of	O
all	O
content	O
which	O
GStreamer	B-Language
supports	O
,	O
by	O
default	O
and	O
through	O
plugins	O
.	O
</s>
<s>
In	O
addition	O
to	O
media	O
formats	O
,	O
sushi	B-Application
supports	O
previewing	O
of	O
most	O
plain-text	O
documents	O
,	O
including	O
scripts	O
(	O
with	O
syntax	O
highlighting	O
)	O
,	O
as	O
well	O
as	O
HTML	B-Language
documents	I-Language
,	O
PDF	B-Application
files	I-Application
,	O
and	O
SVG	B-Application
files	I-Application
.	O
</s>
