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Plone add-on product for displaying the content in grayscale.

Project description



The stxnext.grayscale package is an add-on Product for Plone that gives the possibility of displaying the web content of the site in the grayscale colors.

Colors transformation

The images are transformed on-the-fly using the PIL library.

The css and html documents are transformed with regular expression to substitute the colors definitions with their grayscale equivalent values.

In Plone 4 (with plone.resource package installed) the transformed resources (images, css files) are cached in the file system to avoid multiple transformation of the same resource.


Plone 3

For sites based on Plone 3.x use stxnext.grayscale v 1.0.0

Plone 4

1. Add stxnext.grayscale to your plone.recipe.zope2instance section’s eggs. Define the resources parameter to point to the existing directory where the transformed resources will be stored to avoid multiple transformation of the same resource:

recipe = plone.recipe.zope2instance
resources = ${buildout:directory}/var/resources
eggs =
  1. Install the Product via portal_quickinstaller


In the stxnext.grayscale tool’s control panel (/@@grayscale_settings) choose the Plone skins to be transformed to grayscale colors.

Author & Contact

  • Radosław Jankiewicz
  • Sebastian Kalinowski

STX Next Sp. z o.o.


This package is licensed under the Zope Public License.


2.0.0 (2013-11-20)

  • Integration with Plone 4.3 [radekj]
  • Executing the registered html transforms (diazo, tiles, …) [radekj]
  • Abandoned compatibility with Plone 3.x [radekj]

1.0.0 (2012-05-21)

  • Initial release

Project details

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stxnext.grayscale-2.0.0a1.tar.gz (98.1 kB view hashes)

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