<s>
Up	O
until	O
GNOME	B-Application
3.5	O
,	O
GNOME	B-Language
Screensaver	I-Language
was	O
the	O
GNOME	B-Application
project	O
's	O
official	O
screen	B-General_Concept
blanking	I-General_Concept
and	I-General_Concept
locking	I-General_Concept
framework	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
GNOME	B-Application
3.5.5	O
,	O
screen	O
locking	O
functionality	O
became	O
a	O
function	O
of	O
GDM	B-Language
and	O
GNOME	B-Language
Shell	I-Language
by	O
default	O
.	O
</s>
<s>
GNOME	B-Language
Screensaver	I-Language
continued	O
to	O
be	O
used	O
by	O
the	O
GNOME	B-Application
Fallback	O
mode	O
until	O
GNOME	B-Application
Fallback	O
was	O
deprecated	O
with	O
the	O
release	O
of	O
GNOME	B-Application
3.8	O
.	O
</s>
<s>
GNOME	B-Language
Screensaver	I-Language
continues	O
to	O
be	O
used	O
in	O
the	O
GNOME	B-Application
Flashback	O
session	O
,	O
a	O
continuation	O
of	O
the	O
GNOME	B-Application
Fallback	O
mode	O
.	O
</s>
<s>
In	O
October	O
2014	O
,	O
a	O
member	O
of	O
the	O
GNOME	B-Application
Flashback	O
team	O
requested	O
maintainer-ship	O
of	O
GNOME	B-Language
Screensaver	I-Language
which	O
would	O
allow	O
it	O
to	O
officially	O
become	O
part	O
of	O
the	O
GNOME	B-Application
Flashback	O
project	O
.	O
</s>
<s>
On	O
some	O
GNOME-based	O
Linux	B-Application
distributions	I-Application
,	O
GNOME	B-Language
Screensaver	I-Language
was	O
used	O
instead	O
of	O
the	O
framework	O
that	O
is	O
a	O
part	O
of	O
XScreenSaver	B-General_Concept
.	O
</s>
<s>
On	O
these	O
systems	O
,	O
the	O
screen	B-General_Concept
savers	I-General_Concept
themselves	O
still	O
came	O
from	O
the	O
XScreenSaver	B-General_Concept
collection	O
,	O
GNOME	B-Language
Screensaver	I-Language
just	O
provided	O
the	O
interface	B-Application
.	O
</s>
<s>
The	O
GNOME	B-Language
Screensaver	I-Language
interface	B-Application
was	O
designed	O
for	O
improved	O
integration	O
with	O
the	O
GNOME	B-Application
desktop	I-Application
,	O
including	O
themeability	O
,	O
language	O
support	O
,	O
and	O
human	B-Application
interface	I-Application
guidelines	I-Application
compliance	O
.	O
</s>
<s>
However	O
,	O
it	O
no	O
longer	O
runs	O
any	O
screensavers	B-General_Concept
and	O
is	O
more	O
properly	O
referred	O
to	O
as	O
a	O
screen	O
blanker	O
.	O
</s>
<s>
Compared	O
to	O
the	O
front	O
end	O
included	O
with	O
XScreenSaver	B-General_Concept
,	O
GNOME	B-Language
Screensaver	I-Language
has	O
a	O
simplified	O
interface	B-Application
but	O
less	O
customizability	O
.	O
</s>
<s>
For	O
instance	O
,	O
users	O
may	O
not	O
select	O
which	O
screensavers	B-General_Concept
to	O
select	O
at	O
random	O
either	O
only	O
one	O
is	O
selected	O
or	O
the	O
program	O
randomly	O
selects	O
from	O
the	O
whole	O
list	O
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
inability	O
to	O
configure	O
individual	O
screensavers	B-General_Concept
and	O
the	O
developers	O
 '	O
response	O
to	O
this	O
issue	O
has	O
been	O
criticized	O
by	O
some	O
users	O
.	O
</s>
<s>
It	O
also	O
lacks	O
a	O
setting	O
to	O
control	O
cycling	O
through	O
different	O
screensavers	B-General_Concept
.	O
</s>
<s>
In	O
GNOME	B-Application
3	O
,	O
GNOME	B-Language
Screensaver	I-Language
was	O
drastically	O
simplified	O
,	O
supporting	O
only	O
screen	O
blanking	O
and	O
no	O
graphical	O
screen	B-General_Concept
savers	I-General_Concept
.	O
</s>
