5 Tails should be usable by every [[target user|contribute/design]],
6 regardless of their abilities or inabilities. Only other key
7 requirements of [[Tails design|contribute/design]] (such as Free
8 Software and maintainability) shall limit this one.
10 Tails therefore needs to ship with accessibility technologies.
12 # Enabling accessibility features
14 These accessibility tools could be enabled at boot time by people who
15 need it, by passing `access=` option(s) to live-boot:
18 Set the accessibility level for physically or visually
20 ACCESS must be one of v1, v2, v3, m1, or m2. v1=lesser
21 visual impairment, v2=moderate visual impairment,
22 v3=blindness, m1=minor motor difficulties, m2=moderate motor
25 We might want to use the syslinux boot menu to enable accessibility features.
27 However, live-boot 3.0~a27-1 removed this feature: "Removing outdated
28 and broken accessibility script, this will be redone in
29 live-config properly." This did not happen upstream.
33 Orca does not work with iceweasel yet. Also think of the Unsafe Browser.
37 live-boot's `access=m1` and `access=m2` options enable various GNOME
38 options suitable for people having motor difficulties. This might be
41 We also probably want to install the `dasher` graphical predictive
42 text input system, that adds eyetracking into the mix. It brings 10MB
43 .deb files in: [[todo/install_dasher]].
47 * [[!debwiki accessibility-devel]]
48 * [[!debwiki accessibility]]
50 # Archive: discarded tools
54 We have been told that Compiz is the preferred accessibility solution
55 for some people with sight impairment; such features Compiz includes are:
57 - inverting colors: good for the color blind or those who need better
59 - looking glass: (small area of screen enlarged) good for those who
60 still like to see the whole desktop while working. This one provides
61 some nice graphics too.
62 - magnifier: like looking glass but without the other graphics
63 - sharpen: makes the entire desktop look sharper for better readability
64 - track mouse: (very helpful) it is very easy for a sight impaired
65 person to loose their mouse. this feature helps prevent that. This
66 is much clearer cut than the mouse tracking in gnome-mag.
67 - zoom: magnify the entire desktop
69 On the other hand, Compiz requires modern graphics hardware, seems
70 pretty hard to get working on Debian Squeeze, and won't be in Wheezy