Specifies the preferred color depth for a session. In general, low color depths give better performance over low bandwidth; however some of the compression technologies available can only be used with full color, so the effective performance depends on the individual application and usage pattern. The server may choose not to honor the color depth setting chosen because higher color depths result in heavy memory usage on the servers.

256 or greater colors are supported only for Windows clients.

The value of 8 is treated as "true color" which is 32-bit, unless the administrator explicitly prohibits a server from supporting a 32-bit session. In that case, the session is downgraded to 24-bit.

ADM UI Element: Citrix Components > Citrix Receiver > User experience > Client graphics settings > Color depth

Interface Element:
  • For applicationsetname: Settings dialog box > Default Options tab > Window Properties > Window Colors menu
  • For applicationservername: Properties dialog box > Options tab > Window Properties > Window Colors menu
Section dynamic,WFClient,Thinwire3.0,Thinwire3.0,Server
Feature Graphics
Data Type String
Access Type Read
UNIX Specific No
Present in ADM Yes


Value Description
1 16 colors - default
2 256 colors
4 high color
8 true color

INI Location

INI File Section Value
Module.ini Thinwire3.0 8
All_Regions.ini Virtual Channels\Thinwire Graphics *
canonicalization.ini Thinwire3.0 DesiredColor
wfclient.ini Thinwire3.0 0x0002
appsrv.ini WFClient 2

Registry Location

Registry Key Value
HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\ICA Client\Engine\Configuration\Advanced\Canonicalization\Thinwire3.0 DesiredColor
HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\ICA Client\Engine\Configuration\Advanced\Modules\Thinwire3.0 8
HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Thinwire Graphics *
HKEY_CURRENT_USER\Software\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Thinwire Graphics *

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