934377 - I'd like an "invert colors" accessibility feature on Windows

Status: UNCONFIRMED

(Firefox :: Disability Access, defect)

Description

[ekrem.koc]

Attachment: invert colors.png

User Agent: Mozilla/5.0 (Windows NT 5.1; rv:25.0) Gecko/20100101 Firefox/25.0 (Beta/Release)
Build ID: 20131025151332

Steps to reproduce:

Mac OSX has an accessibility:
- System setting;
- Accessibilty;
- Display
- Contrast: Negative/Positive (Invert colors'


Actual results:

Mozilla Firefox and Mozilla Thunderbird has no accessiblity of question 1 (Mac OSX), when I work with Windows.


Expected results:

Can the developer of Moziilla make a contrast (negative/positive in display; (inverts color)) from Firefox and Thunderbird? A shortcut will be very easy too.

Comment 1

[Loic]

I don't understand why this OS setting should be included in FF/TB. You can do that in Windows:
http://www.wikihow.com/Invert-Colors-on-Your-Windows-XP
http://www.wikihow.com/Invert-Colors-on-Windows-7

It's purely OS-specific.

Comment 2

[Liz Henry (:lizzard) (relman/hg->git project)]

Hi ekrem, I tried setting Windows 7 to use color inversion using the Magnifier tool. Open Magnifier from the Start Menu, then open the Magnifier options and there is a color inversion checkbox. For me, this inverted the colors on Firefox.  Are you using a different technique?

Comment 3

[Liz Henry (:lizzard) (relman/hg->git project)]

Loic, I think the behavior varies in various Windows systems and sometimes (if it is from a high contrast theme) doesn't include browsers.

Comment 4

[ekrem.koc]

A invert color of Windows XP doesn't work full screen, they are from top window only. My question: Can a developer make a offical invert color from Mozilla Firefox and Mozilla Thunderbird? And can they make a shortcut too?

Example of screenshots:

Normal screen: http://img35.imageshack.us/img35/6317/negativeinvertbefore.png
Invert color screen: http://img88.imageshack.us/img88/346/negativeinvertafter.png