Colour contrast needs to be improved for accessibility (default theme)

[Jono M]

Various elements in Mahara don't have a high enough level of contrast to meet WCAG standards. The contrast of these elements needs to be increased so that people with low vision can see them easily.

Raw theme
- "X results" text, eg. on Pages, "X tasks" on Tasks blocktype, etc.
- Preview of page text, file size in Files block, "posted by" in Journal entry block

Default theme
- Table headers in Files blocktype, Attached files header in Journal entry blocktype
- "X entries" text in Journal blocktype
- Download link in Files blocktype, Go to forums link in Recent posts blocktype
- Menu items when small headers are enabled
- Blue table headers and labels (eg. in My entire resume blocktype, Plan blocktype, Content -> Profile)
- In-page tabs
- Links on a light green background (eg. in tables)
- Links on a red background (overdue tasks in table)
- All other links
- Selected main navigation item

Affects latest master

(WCAG Level AA)

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/3021

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/3021
Committed: http://gitorious.org/mahara/mahara/commit/90e37378b38d13f4c1ed570f20d559bdddfff39f
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit 90e37378b38d13f4c1ed570f20d559bdddfff39f
Author: Evonne Cheung <email address hidden>
Date: Wed Feb 19 15:50:28 2014 +1300

Improved color contrast for accessibility (Bug #1281877)

Design changes from Evonne

Change-Id: Ie43b7bd277efdd310011602cad83e091f56372c9
Signed-off-by: Jono Mingard <email address hidden>