<s>
SAI	B-Application
or	O
is	O
a	O
lightweight	O
raster	B-Application
graphics	I-Application
editor	I-Application
and	O
painting	O
software	O
for	O
Microsoft	B-Application
Windows	I-Application
developed	O
and	O
published	O
by	O
Systemax	O
Software	O
.	O
</s>
<s>
SAI	B-Application
's	O
official	O
release	O
(	O
1.0.0	O
)	O
was	O
on	O
February	O
25	O
,	O
2008	O
,	O
and	O
an	O
update	O
preview	O
was	O
released	O
shortly	O
after	O
.	O
</s>
<s>
It	O
has	O
been	O
available	O
on	O
Microsoft	B-Application
Windows	I-Application
from	O
98	B-Device
to	O
10	B-Operating_System
.	O
</s>
<s>
The	O
painting	B-Application
application	I-Application
is	O
available	O
in	O
both	O
Japanese	O
,	O
and	O
an	O
official	O
English	O
as	O
well	O
as	O
an	O
official	O
German	O
translation	O
.	O
</s>
<s>
SAI	B-Application
is	O
a	O
lightweight	O
painting	B-Application
application	I-Application
.	O
</s>
<s>
The	O
user	B-Application
interface	I-Application
allows	O
multiple	O
documents	O
to	O
be	O
opened	O
at	O
the	O
same	O
time	O
.	O
</s>
<s>
Various	O
raster	O
drawing	O
tools	O
are	O
implemented	O
,	O
such	O
as	O
the	O
Airbrush	O
,	O
Watercolor	O
,	O
Pen	O
,	O
and	O
Marker	O
,	O
which	O
can	O
all	O
be	O
easily	O
customized	O
,	O
and	O
stored	O
in	O
slots	O
in	O
the	O
user	B-Application
interface	I-Application
of	O
the	O
application	O
.	O
</s>
<s>
Work	O
can	O
be	O
done	O
on	O
separate	O
layers	B-Algorithm
,	O
which	O
can	O
be	O
grouped	O
and	O
have	O
opacity	O
masks	O
.	O
</s>
<s>
In	O
addition	O
to	O
this	O
,	O
layers	B-Algorithm
can	O
be	O
masked	O
by	O
clipping	O
them	O
to	O
a	O
lower	O
layer	O
.	O
</s>
<s>
This	O
allows	O
one	O
to	O
add	O
shading	O
and	O
highlights	O
to	O
an	O
area	O
without	O
creating	O
new	O
masks	O
for	O
the	O
additional	O
layers	B-Algorithm
.	O
</s>
<s>
Selection	O
tools	O
include	O
the	O
simple	O
square	O
selection	O
,	O
the	O
lasso	O
,	O
and	O
magic	O
wand	O
,	O
which	O
can	O
be	O
configured	O
for	O
anti-aliasing	B-Algorithm
.	O
</s>
<s>
SAI	B-Application
comes	O
with	O
a	O
full	O
set	O
of	O
transformation	O
tools	O
that	O
can	O
work	O
on	O
selections	O
,	O
including	O
move	O
,	O
resize	O
,	O
rotate	O
,	O
and	O
a	O
free	O
(	O
perspective	O
)	O
transform	O
.	O
</s>
<s>
Some	O
common	O
features	O
that	O
exist	O
in	O
similar	O
software	O
,	O
such	O
as	O
text	O
layers	B-Algorithm
,	O
gradients	O
,	O
and	O
shape	O
tools	O
,	O
are	O
not	O
implemented	O
,	O
as	O
SAI	B-Application
focuses	O
on	O
drawing	O
and	O
painting	O
,	O
while	O
the	O
final	O
composition	O
is	O
often	O
done	O
using	O
another	O
application	O
.	O
</s>
<s>
SAI	B-Application
displays	O
white	O
and	O
transparency	O
in	O
the	O
same	O
way	O
,	O
which	O
may	O
cause	O
significant	O
display	O
differences	O
when	O
exporting	O
to	O
another	O
program	O
,	O
such	O
as	O
Adobe	O
Photoshop	O
.	O
</s>
<s>
There	O
is	O
also	O
no	O
printing	O
functionality	O
,	O
but	O
documents	O
can	O
be	O
exported	O
in	O
a	O
range	O
of	O
popular	O
formats	O
,	O
such	O
as	O
.PSD	O
or	O
.BMP	B-Device
files	O
,	O
in	O
addition	O
to	O
the	O
native	O
.SAI	O
format	O
.	O
</s>
<s>
Because	O
the	O
program	O
does	O
not	O
focus	O
on	O
image	O
editing	O
,	O
the	O
only	O
adjustments	O
present	O
are	O
Brightness/Contrast	O
and	O
Hue/Saturation	O
,	O
and	O
therefore	O
no	O
support	O
of	O
level	O
editing	O
,	O
channel	O
extraction	O
,	O
etc	O
.	O
</s>
<s>
Users	O
may	O
use	O
another	O
program	O
for	O
more	O
complex	O
editing	O
,	O
but	O
when	O
the	O
image	O
is	O
brought	O
back	O
to	O
SAI	B-Application
,	O
its	O
properties	O
may	O
be	O
changed	O
.	O
</s>
<s>
SAI	B-Application
also	O
includes	O
linework	O
layers	B-Algorithm
,	O
which	O
can	O
be	O
used	O
instead	O
of	O
manually	O
drawing	O
linework	O
.	O
</s>
