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Re: default GNOME desktop background

From: Joshua Branson
Subject: Re: default GNOME desktop background
Date: Sat, 09 Nov 2019 11:08:30 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

Leo Prikler <address@hidden> writes:

>> I find it strange that the default background in the GNOME DE is a
>> plain color instead of one of the backgrounds installed with gnome-
>> backgrounds.
> So do I, although to me it matters little, since the settings dialogue
> is usually the first thing I visit in a freshly installed GNOME. 
> Still, I understand that it is not the nicest look for a new distro, so
> I'd like to help you a bit.
>> I am not exactly sure how to do this the guix-y way to send a patch,
>> but the background that gnome uses is the value of the key "picture-
>> uri" in the gsettings schema "org.gnome.desktop.background".
>> So, to get the background you would do:
>> gsettings get org.gnome.desktop.background picture-uri
>> To set it:
>> gsettings set org.gnome.desktop.background picture-uri
>> "file:///home/me/Pictures/mybg.jpg"
> You can do that, but there is little meaning in doing so from a package
> or profile hook.  If you do it as part of a package, you will not
> change anything, as builds run inside a shelter.  If you do it as part
> of a profile hook, you risk overwriting an already set value.  Neither
> behaviour is particularly desirable.
>> Can we please set it to one of the pre-installed backgrounds? They
>> can be found in ~/.guix_profile/share/backgrounds/gnome. How about
>> adwaita-day.jpg? This is the default on most distros I believe. Or if
>> someone could give me a couple of pointers how to do this I can send
>> a patch. I believe one would just add a post-install command in the
>> "gnome-backgrounds" package that calls `gsettings set` with the path.
> 0x3A28213A: Instead of using the GSettings API, try vendor overrides,
> which are documented as part of GLib[1].  Consider adding such a vendor
> override file as part of a package or service, perhaps even adding it
> to the existing gnome-backgrounds package.
> 0x6339392C: Instead of local paths, you should use store paths.
> 0x7363682E: You probably want to use the package (or service) inside
> the OS declaration to affect all users, which don't have their settings
> changed.
> 0x-1: Perhaps instead of adwaita-day.jpg, you'd like to reuse the GRUB
> image or the GDM background.  Not really sure how to access the latter,
> though.

I know that at least on my machine I have a grub-image.png file in my
store.  I don't know if that helps...

find /gnu/store -name '*grub-image*'

> Also remember to follow all the packaging/patch guidelines :)
> Regards,
> Leo
> [1]

Joshua Branson
Sent from Emacs and Gnus

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