<s>
KDE	B-Language
Plasma	I-Language
4	I-Language
was	O
the	O
fourth	O
generation	O
of	O
the	O
KDE	B-Application
workspace	O
environments	O
.	O
</s>
<s>
It	O
consisted	O
of	O
three	O
workspaces	O
,	O
each	O
targeting	O
a	O
certain	O
platform	O
:	O
Plasma	B-Language
Desktop	I-Language
for	O
traditional	O
desktop	B-Device
PCs	I-Device
and	O
notebooks	B-Device
,	O
Plasma	O
Netbook	B-Device
for	O
netbooks	B-Device
,	O
and	O
Plasma	O
Active	O
for	O
tablet	B-Device
PCs	I-Device
and	O
similar	O
devices	O
.	O
</s>
<s>
KDE	B-Language
Plasma	I-Language
4	I-Language
was	O
released	O
as	O
part	O
of	O
KDE	B-Language
Software	I-Language
Compilation	I-Language
4	I-Language
and	O
replaced	O
Kicker	B-Language
,	O
KDesktop	B-Language
,	O
and	O
SuperKaramba	B-Language
,	O
which	O
formed	O
the	O
Desktop	O
in	O
earlier	O
KDE	B-Application
releases	O
.	O
</s>
<s>
They	O
are	O
bundled	O
as	O
the	O
default	O
environment	O
with	O
a	O
number	O
of	O
free	B-Application
software	I-Application
operating	B-General_Concept
systems	I-General_Concept
,	O
such	O
as	O
Chakra	O
,	O
Kubuntu	B-Application
,	O
Mageia	O
(	O
DVD	O
version	O
)	O
,	O
openSUSE	B-Operating_System
,	O
or	O
TrueOS	B-Application
.	O
</s>
<s>
With	O
the	O
release	O
of	O
KDE	O
SC	O
4.11	O
on	O
14	O
August	O
2013	O
,	O
KDE	B-Language
Plasma	I-Language
4	I-Language
was	O
placed	O
into	O
a	O
feature	O
freeze	O
and	O
turned	O
into	O
a	O
long-term	O
stable	O
package	O
until	O
August	O
2015	O
.	O
</s>
<s>
On	O
15	O
July	O
2014	O
KDE	B-Language
Plasma	I-Language
4	I-Language
's	O
successor	O
,	O
KDE	B-Language
Plasma	I-Language
5	I-Language
,	O
was	O
released	O
.	O
</s>
<s>
A	O
containment	O
can	O
be	O
anything	O
the	O
developer	O
wants	O
:	O
an	O
image	O
(	O
either	O
raster	B-Algorithm
graphics	I-Algorithm
or	O
an	O
SVG	B-Application
image	O
)	O
,	O
animation	O
,	O
or	O
even	O
OpenGL	B-Application
.	O
</s>
<s>
The	O
Kross	B-Language
scripting	O
framework	O
allows	O
developers	O
to	O
write	O
widgets	O
in	O
a	O
variety	O
of	O
programming	O
languages	O
in	O
addition	O
to	O
C++	B-Language
.	O
</s>
<s>
It	O
replaces	O
the	O
dialog	O
box	O
"	O
Run	O
Command	O
"	O
from	O
K	B-Language
Desktop	I-Language
Environment	I-Language
3	I-Language
,	O
and	O
also	O
inherits	O
from	O
the	O
application	O
launcher	O
feature	O
,	O
expanding	O
the	O
possibilities	O
through	O
a	O
modular	O
plug	O
.	O
</s>
<s>
Contacts	O
can	O
search	O
for	O
entries	O
in	O
KDE	B-Application
's	O
address	O
book	O
allowing	O
users	O
to	O
directly	O
open	O
,	O
for	O
example	O
,	O
KMail	O
to	O
write	O
an	O
e-mail	O
.	O
</s>
<s>
Web	O
history	O
:	O
Search	O
history	O
of	O
recently	O
visited	O
sites	O
in	O
Konqueror	B-Application
.	O
</s>
<s>
Plasma	B-Language
Desktop	I-Language
was	O
a	O
standard	O
desktop	O
interface	O
.	O
</s>
<s>
It	O
is	O
designed	O
for	O
desktop	B-Device
PCs	I-Device
and	O
larger	O
laptops	B-Device
.	O
</s>
<s>
In	O
its	O
default	O
configuration	O
it	O
resembles	O
K	B-Language
Desktop	I-Language
Environment	I-Language
3	I-Language
and	O
Microsoft	B-Application
Windows	I-Application
XP	I-Application
but	O
extensive	O
configurability	O
allows	O
radical	O
departures	O
from	O
the	O
default	O
layout	O
.	O
</s>
<s>
Its	O
technology	O
is	O
a	O
fundamental	O
rewrite	O
of	O
several	O
desktop	O
interaction	O
programs	O
included	O
in	O
previous	O
KDE	B-Application
desktop	O
environments	O
for	O
Unix-like	B-Operating_System
systems	I-Operating_System
,	O
focusing	O
on	O
eye	O
candy	O
and	O
special	O
graphical	O
effects	O
.	O
</s>
<s>
The	O
Desktop	O
Workspace	O
replaces	O
the	O
previous	O
KDesktop	B-Language
shell	O
,	O
Kicker	B-Language
taskbar	O
and	O
SuperKaramba	B-Language
widget	O
engine	O
used	O
in	O
the	O
K	B-Language
Desktop	I-Language
Environment	I-Language
3	I-Language
series	O
with	O
a	O
unified	O
system	O
of	O
widgets	O
that	O
can	O
be	O
configured	O
and	O
replaced	O
with	O
alternative	O
designs	O
.	O
</s>
<s>
From	O
KDE	O
4.0	O
to	O
KDE	B-Language
4.2	I-Language
,	O
the	O
default	O
theme	O
Oxygen	O
was	O
characterized	O
by	O
dark	O
tones	O
.	O
</s>
<s>
New	O
themes	O
for	O
Plasma	O
can	O
be	O
chosen	O
and	O
installed	O
through	O
software	O
like	O
Discover	O
or	O
online	O
at	O
store.kde.org	O
.	O
</s>
<s>
Not	O
all	O
widgets	O
are	O
supported	O
by	O
default	O
in	O
all	O
Linux	B-Application
distributions	I-Application
;	O
some	O
may	O
require	O
different	O
packages	O
,	O
or	O
even	O
a	O
recompilation	O
of	O
Plasma	O
.	O
</s>
<s>
First	O
generation	O
native	O
widgets	O
(	O
In	O
C++	B-Language
,	O
JavaScript	B-Language
,	O
Ruby	B-Language
or	O
Python	B-Language
.	O
</s>
<s>
Second	O
generation	O
native	O
widgets	O
written	O
in	O
QML	B-Language
.	O
</s>
<s>
SuperKaramba	B-Language
widgets	O
–	O
used	O
in	O
KDE	B-Language
3	I-Language
.	O
</s>
<s>
Previous	O
Plasma	B-Language
Workspaces	I-Language
releases	O
also	O
supported	O
Edje	O
gadgets	O
and	O
E17	B-Application
modules	O
.	O
</s>
<s>
Google	B-Application
Gadgets	I-Application
were	O
also	O
supported	O
.	O
</s>
<s>
After	O
Google	O
announced	O
to	O
discontinue	O
its	O
two	O
services	O
that	O
utilize	O
Gadgets	O
–	O
Google	B-Application
Desktop	I-Application
and	O
iGoogle	B-Application
–	O
KDE	B-Application
removed	O
support	O
for	O
this	O
widget	O
engine	O
in	O
early	O
2013	O
.	O
</s>
<s>
Plasma	O
Netbook	B-Device
is	O
the	O
second	O
workspace	O
.	O
</s>
<s>
It	O
aims	O
at	O
netbooks	B-Device
and	O
may	O
also	O
be	O
used	O
on	O
tablet	B-Device
PCs	I-Device
.	O
</s>
<s>
The	O
first	O
stable	O
release	O
shipped	O
with	O
KDE	B-Language
SC	I-Language
4.4	I-Language
.	O
</s>
<s>
Plasma	O
Active	O
was	O
a	O
workspace	O
for	O
devices	O
with	O
touchscreens	B-Device
.	O
</s>
<s>
It	O
shipped	O
with	O
several	O
applications	O
such	O
as	O
Kontact	B-Language
Touch	I-Language
and	O
a	O
document	O
viewer	O
based	O
on	O
Calligra	B-Application
Suite	I-Application
.	O
</s>
<s>
It	O
has	O
been	O
succeeded	O
by	O
KDE	B-Language
Plasma	I-Language
Mobile	I-Language
starting	O
with	O
KDE	B-Language
Plasma	I-Language
5	I-Language
.	O
</s>
<s>
Contour	O
was	O
the	O
name	O
of	O
an	O
interface	O
for	O
tablet	B-Device
devices	I-Device
.	O
</s>
<s>
Replacing	O
an	O
earlier	O
tablet	B-Device
prototype	O
,	O
Contour	O
has	O
then	O
become	O
the	O
main	O
workspace	O
UI	O
of	O
Plasma	O
Active	O
and	O
was	O
shipped	O
as	O
1.0	O
in	O
October	O
2011	O
.	O
</s>
<s>
Plasma	B-Language
Mobile	I-Language
was	O
targeted	O
at	O
smartphones	B-Application
and	O
small	O
tablet	B-Device
devices	I-Device
that	O
are	O
mainly	O
used	O
via	O
touch	B-Device
input	I-Device
.	O
</s>
<s>
A	O
new	O
version	O
with	B-Language
the	I-Language
same	I-Language
name	I-Language
but	O
based	O
on	O
KDE	B-Language
Frameworks	I-Language
5	I-Language
has	O
been	O
announced	O
on	O
25	O
July	O
2015	O
.	O
</s>
<s>
Linux.com	O
described	O
the	O
reaction	O
from	O
users	O
as	O
a	O
"	O
revolt	O
"	O
,	O
writing	O
that	O
the	O
backlash	O
KDE	O
4.0	O
received	O
was	O
on	O
a	O
scale	O
that	O
was	O
unprecedented	O
for	O
a	O
FOSS	B-License
project	O
.	O
</s>
<s>
openSUSE	B-Operating_System
released	O
a	O
more	O
polished	O
KDE	B-Language
4	I-Language
option	O
while	O
other	O
distributions	O
"	O
released	O
packages	O
that	O
simply	O
 [ didn't ] 	O
work	O
,	O
"	O
according	O
to	O
project	O
leader	O
Aaron	O
Seigo	O
.	O
</s>
<s>
A	O
number	O
of	O
KDE	B-Application
developers	O
,	O
including	O
project	O
leader	O
Aaron	O
Seigo	O
,	O
were	O
targeted	O
for	O
abuse	O
by	O
outlets	O
like	O
Linux	O
Hater	O
's	O
Blog	O
.	O
</s>
<s>
Several	O
KDE	B-Application
developers	O
stepped	O
back	O
from	O
the	O
public	O
scrutiny	O
.	O
</s>
