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

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

The comment on the change is:
note that orca work is essentially trivial

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  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.
  
- Add a configuration tool to Orca to apply settings to the colour filter. 
+ Add a configuration tool to Orca to apply settings to the colour filter. This will be very similar to existing UI in Orca.
  
  == Implementation ==