[Trisquel-users] Re : Invert screen

[lcerf]

Using the 'dark background and light text' addon for firefox compensates for  
the problem, but the color settings of the addon and the theme are not  
exactly the same.


Again (and sorry if either I was not clear the first time or if I  
misunderstood the sentence above):


You can know the exact color of any pixel on your screen (in particular the  
colors defined in Numix-Zenburn) with tiny programs such as gcolor2, which is  
Trisquel's repository;
You can set six of these colors in the preferences of the extension "Dark  
Background and Light Text".

[Trisquel-users] Re : Invert screen

[lcerf]

The reason I asked you was that I suppose you would know whether this problem  
can be solved via the terminal or not.


You can certainly alter Abrowser's configuration files through command lines,  
rather than through the Preferences or through about:config.  But the result  
would be the same.


I had never clicked on that "Colors..." button in the "Preferences".  I see  
the colors defined there are actually part of those I defined through the  
preferences of the extension "Dark Background and Light Text".  You may find  
the use of that extension acceptable (you can know the exact color of any  
pixel on your screen with tiny programs such as gcolor2, which is Trisquel's  
repository).


But I am actually unsure whether you refer to the content of the Web page (as  
I do in the paragraph above) or to the "chrome" (the rest of Abrowser's  
window).  In the latter case, you may find and install a Firefox theme of  
your choice.

[Trisquel-users] Re : Invert screen

[lcerf]

That command line substituted a seven-step fix that arielenter designed to a  
problem all Abrowser users faced at that time.  To be honest, I am not really  
following what changes you are trying to apply.  But if does not work  
manually (editing values in about:config, as far as I understand), a command  
line doing the same would not work either.

[Trisquel-users] Re : Invert screen

[lcerf]

about:newtab has a dark background here.  about:blank has not.  And, yes,  
there are white flashes when a new page is loaded.

Re: [Trisquel-users] Re : Invert screen

[mason]

> I use
> https://addons.mozilla.org/fr/firefox/addon/dark-background-light-text/

This was what I used before I learned that the browser has native color
settings.  IIRC, the reason I switched was that the addon does not have
permission to modify every page, such as pages like about:home or a
newly opened tab in the split second before a page begins to load, so I
was often getting annoying flashes of bright white.

> the dark theme for Abrowser (which comes by default, disabled)

Does the dark theme cause pages to default to something other than white
before the addon kicks in?  If so, that might fix the problem I was
having.


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[Trisquel-users] Re : Invert screen

[lcerf]

I use https://addons.mozilla.org/fr/firefox/addon/dark-background-light-text/  
with the colors in the image below, the same dark colors in Emacs and GNOME  
Terminal, the dark theme for Abrowser (which comes by default, disabled), the  
"Monterail Full Dark" theme for Icedove, Ctrl+I to invert the colors of a  
document in Atril, etc.

[Trisquel-users] Re : Invert screen

[lcerf]

It includes dpkg-dev too, to build DEB package.  And there is no C++ in  
XRandR Invert Colors (as far as I saw).  So, sebasarena only needed GCC and  
Make.  But, sure, there is little harm in installing additional software you  
never run.

[Trisquel-users] Re : Invert screen

[lcerf]

He may not have GCC and Make installed, i.e., the 'apt install' command  
should be completed:

sudo apt install gcc make libxcb-randr0-dev