Although the quote below from the developer may sound a bit spiritual, the results are concrete. The quality of the icons is outstanding and they are published under the GNU General Public License, hence our decision to use them on our websites.
Crystal is a human-computer interface design project focused on the user. It contains the human being, his ambiguities, feelings, perceptions, cultural and social backgrounds and everything else that can be called “human” as a measure and efforts.
Everaldo
The project has developed various sets of icons (see below) in different sizes that can be downloaded conveniently in one zip file. Instead of inserting one picture at a time in this article, we use Phocagallery to display the icons (Simple Image Gallery does not show PNG files).
Before downloading them from our site one by one, please obtain the zip files here: http://everaldo.com
3d
access
acroread
advancedsetting...
agent
agt_aisles
agt_announcemen...
agt_business
agt_desktop_enh...
agt_games
agt_home
agt_internet
agt_login
agt_member
agt_mp3
agt_multimedia
agt_runit
agt_softwareD
agt_start_here
agt_utilities
agt_web
aim
aim_protocol
aisles
aktion
alert
All software is...
amor
announcements
antivirus
applixware
ark
arts
artsartsbuilder
artsbuilder
artscontrol
assistant
atlantik
atlantikdesigne...
audio&video
autostart
autostart1
babelfish
background
bell
blender
blockdevice
browser
bug
buisness
business
cache
cal
calc
calendars
camera
camera_unmount-...
Cardgame
cervisia
chardevice---
chat
clanbomber
clean
clicknrun
clicknrungrey
clickrun
clock
cnr
cnrclient
cnrgrey
cnr_64x64
colors
Community Help
cookie
core
daemons
database
date
demo
designet
desktopshare
desktop_enhance...
disksfilesystem...
display
displayconfig
download
download_manage...
drop
drop kbtobexcli...
easymoblog
education
energy
energy_star
enhanced_browsi...
error
exit
fifteenpieces
file-manager
fileshare
filetypes
firefox
firefox_alt
firewall
flag
flash
font
fonts
fortress
gadu
gaim
gaimphone
galeon
games
gimp
gnome_apps
go
go_kde
gpg
gpgsm
graphic-design
gvim
harddrive
harddrive2
hardware
help_index
hibernate
highlight
home&food
home
hwinfo
icons
iconthemes
important
imput_device_
input_devices_s...
internet&networ...
internet
Internet Connec...
irc_protocol
irkick
Iskat
jabber_protocol
java
juk
k3b
kaboodle
kaddressbook
kalarm
kappfinder
karbon
karm
kasteroids
kate
katomic
katuberling
kbackgammon
kbackgammon_eng...
kbattleship
kbemusedsrv
kblackbox
kbounce
kbtobexclient
kbtserialchat
kcalc
kcharselect
kchart
kcmdevices
kcmdf
kcmfontinst
kcmkicker
kcmkwm
kcmmemory
kcmmidi
kcmpartitions
kcmpci
kcmprocessor
kcmscsi
kcmsound
kcmsystem
kcmx
kcoloredit
kcontrol
kdebluetooth
kded
kdeprintfax
KDE Resources ...
kdevelop
kdf
kdisknav
kdmconfig
kdvi
kedit
keditbookmarks
kenolaba
kexi
keyboard
keyboard_layout
key_bindings
kfax
kfilereplace
kfind
kfloppy
kfm
kfm_home
kformula
kfouleggs
kget
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kgoldrunner
kgpg
khelpcenter
kicker
kivio
kjobviewer
kjumpingcube
klaptop
klaptopdaemon
klines
klipper
kllckety
klpq
kmahjongg
kmail
kmenu
kmenuedit
kmid
kmines
kmix
kmousetool
knetconfig
knewsticker
knode
knotes
knotify
kodo
kolf
konqsidebar_med...
konqsidebar_new...
konqueror
konquest
konsole
kontact
konverter
kopete
korganizer
korn
kpackage
kpaint
kpat
kpersonalizer
kpilot
kpoker
kppp
kpresenter
krdc
krec
kreversi
krfb
krita
ksame
kscd
kscreensaver
kservices
kshisen
ksirtet
ksmiletris
ksnake
ksnapshot
ksokoban
kspaceduel
ksplash
kspread
kstars
ksysguard
ksysv
ktalkd
kteatime
kterm
kthememgr
ktimer
ktip
ktron
kudesigner
kugar
kuser
kview
kviewshell
kvirc
kwallet
kwalletmanager
kweather
kwikdisk
kwin
kwin4
kword
kworldclock
kwrite
kxconfig
kxkb
laptop_battery
laptop_pcmcia
lassist
lassists
launch
licker
licq
linguist
linneighborhood
linneighborhood...
linphone
Linspire Quicks...
linuxconf
List manager
lists
llaunch
locale
lockstart_sessi...
Login Manager
logout
looknfeel
lphoto
lreminder
lskat
lsongs
lsuite
lswitch
mac
magic8ball
mail
mailreminder
messenger
miscellaneous
mouse
mozilla-mail
mozilla
mozillacrystal
mp3
msn
multimedia
multimedia2
multiple_monito...
musicstore
mycomputer
mydocuments
mylinspire
mymac
my_documents
nautilus
navigator
neotux
netjaxer
netscape
Network Connect...
networksettings
no3D
noatun
openoffice
openofficeorg-2...
openofficeorg-2...
openofficeorg-2...
openofficeorg-2...
openofficeorg-2...
openofficeorg-2...
openofficeorg-2...
os-support
package
package_applica...
package_develop...
package_editors
package_editors...
package_edutain...
package_favorit...
package_games
package_games_a...
package_games_b...
package_games_c...
package_games_k...
package_games_s...
package_graphic...
package_multime...
package_network
package_program...
package_setting...
package_system
package_toys
package_utiliti...
package_wordpro...
palm
parallels
password
penguin
personal
php
phppg
pppoeconfig
printer
printer1
printmgr
proxy
pysol
qtella
quicktime
quick_restart
randr
reminders
remote
restart-1
restart
runit
samba
scanner
search
Service Manager
Session Manager
seyon
sharemanager
shutdown
sipphone
skype
sms
smserver
software-develo...
softwareD
softwareD
spire
staroffice
starthere
Startup Wizard
style
stylesheet
switchuser
synaptic
Synaptics touch...
systemsettings
systemtray
terminal
thunderbird
tutorials
tux
usb
Utilities
vcalendar
virus detected
virussafe
voice-support
Volume Manager
warehause
web
wifi
windowlist
windows_list
windows_users
window_list
wine
x
xapp
xcalc
xchat
xclock
xconsole
xedit
xeyes
xfig
xfmail
xine
xmag
xmms
xpaint
Ym
3floppy_mount
3floppy_unmount
blockdevice
camera_mount
camera_unmount
cam_mount
cam_unmount
cdaudio_mount
cdaudio_unmount
cdrom_mount
cdrom_unmount
cdwriter_mount
cdwriter_unmoun...
chardevice
dvd_mount
dvd_unmount
fileshare
Globe
Globe2
hdd_mount
hdd_unmount
joystick
Keyboard
kterm
laptop
memory_stick_mo...
memory_stick_un...
Modem
mount
mount_overlay
mouse
mp3player_alt_m...
mp3player_alt_u...
mp3player_mount
mp3player_unmou...
network_local
nfs_mount
nfs_unmount
pda
pda alt
pda_black
pipe
printer1
printer2
print_class
scanner
setup_assistant
smartmedia_moun...
smartmedia_unmo...
tablet
tv
unmount_overlay
usbpendrive_mou...
usbpendrive_unm...
zip_mount
zip_unmount
blockdevice
chardevice
connect_to_netw...
database
desktop
desktop22
exec
favorites
file
file_alert
file_broken
file_doc
file_locked
file_temporary
folder
folder_blue
folder_document...
folder_favorite...
folder_green
folder_grey
folder_home
folder_html
folder_image
folder_images
folder_inbox
folder_locked
folder_music
folder_outbox
folder_print
folder_public
folder_red
folder_sound
folder_tar
folder_video
folder_yellow
ftp
Globe
Globe2
image
link
lockoverlay
network
network_local
services
socket
trashcan_empty
trashcan_full
www
zip
applix
ascii
binary
cdbo_list
cdimage
cdtrack
colorscm
colorset
core
deb
doc
document
document2
dvi
empty
empty_ascii
encrypted
exec_wine
file_broken
file_locked
file_temporary
font
fonts_bitmap
font_bitmap
font_truetype
font_type1
gettext
gf
html
image
image2
images
info
java_src
karbon
karbon_karbon
kchart_chrt
kexi_kexi
kformula_kfo
kivio_flw
kmultiple
koffice
kpresenter_kpr
krita_kra
kspread_ksp
kugardata
kugar_kud
kword_kwd
log
make
man
message
metafont
midi
mime
mime_ascii
mime_cdr
mime_colorset
mime_empty
mime_koffice
mime_postscript
mime_resource
misc
misc_doc
moc_src
mozilla_doc
netscape
netscape_doc
news
pdf
pdf_document
php
pk
postscript
pps
ps
quicktime
readme
real
real_doc
recycled
resource
rpm
schedule
shell1
shellscript
soffice
sound
source
source_c
source_cpp
source_f
source_h
source_j
source_java
source_l
source_moc
source_o
source_p
source_php
source_pl
source_py
source_s
source_y
sownd
spreadsheet
spreadsheet_doc...
swf
tar
templates
template_source
tex
tgz
trash
txt
txt2
unknown
vcalendar
vcard
vectorgfx
video
widget_doc
wordprocessing
xcf
zip