[u-a-dev] [Ubuntu Wiki] Update of "Accessibility/Specs/ColorFilters" by GuillaumeSeguin

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The following page has been changed by GuillaumeSeguin:
https://wiki.ubuntu.com/Accessibility/Specs/ColorFilters

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  == Scope ==
  
- Add filtering capability to gnome-mag (now available upstream). Add configuration settings to gnome-orca.
+ Add filtering capability to the compositor. Add configuration settings to gnome-orca.
  
  == Design ==
  
- Add a filtering feature to gnome-mag to enhance the contrast of the entire display. This will be similar to what is currently done with the 'Invert' option in gnome-mag, though many users of the new feature will simply run gnome-mag at zoom level 1.
+ Add a filtering feature to the compositor (e.g. compiz or beryl) to enhance the contrast of the entire display. This will be similar to what is currently done with the 'Invert' option in gnome-mag, though many users of the new feature will simply run gnome-mag at zoom level 1. These last two features are also available in compositors like beryl and compiz, and zoom will be worked on during the summer.
  
- Using an AT-SPI application (gnome-mag) as our base also allows us to take advantage of other powerful features in later stages such as probing of the desktop via AT-SPI to alter only selected areas such as charts with poor contrast. Filtering combined with zoom will be available from the start.
+ Using an AT-SPI application (gnome-mag) as our base also allows us to take advantage of other powerful features in later stages such as probing of the desktop via AT-SPI to alter only selected areas such as charts with poor contrast. Using a compositors allows us to take advantage of a more efficient and powerful rendering. We could probably add a AT-SPI mode in a future filtering plugin. Filtering combined with zoom will be obviously be available from the start as parts of the compositor.
  
  Add a configuration tool to Orca to apply settings to the colour filter. This will be very similar to existing UI in Orca.
  
  == Implementation ==
  
  An initial implementation using [http://people.debian.org/~ruoso/libcolorblind-0.0.0.tgz libcolorblind] was done for gnome-mag. See patches in the [http://bugzilla.gnome.org/show_bug.cgi?id=377856 gnome-bugzilla].
+ 
+ A new implementation using a compositor will be done as part of Summer of Code 2007.
  
  Configuration tools should be developed with upstream (Gnome and Orca).