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{{admon/important | Comments and Explanations | The page source contains comments providing guidance to fill out each section. They are invisible when viewing this page. To read it, choose the "view source" link.<br/> '''Copy the source to a ''new page'' before making changes!  DO NOT EDIT THIS TEMPLATE FOR YOUR CHANGE PROPOSAL.'''}}
{{admon/tip | Guidance | For details on how to fill out this form, see the [https://docs.fedoraproject.org/en-US/program_management/changes_guide/ documentation].}}
{{admon/tip | Guidance | For details on how to fill out this form, see the [https://docs.fedoraproject.org/en-US/program_management/changes_guide/ documentation].}}


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<!-- The actual name of your proposed change page should look something like: Changes/Your_Change_Proposal_Name.  This keeps all change proposals in the same namespace -->
<!-- The actual name of your proposed change page should look something like: Changes/Your_Change_Proposal_Name.  This keeps all change proposals in the same namespace -->


= Switch to JXL format for Default Wallpaer <!-- The name of your change proposal --> =
= Switch to JXL format for Default Wallpaper <!-- The name of your change proposal --> =


{{Change_Proposal_Banner}}
{{Change_Proposal_Banner}}
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== Current status ==
== Current status ==
[[Category:ChangePageIncomplete]]
[[Category:ChangeReadyForWrangler]]
<!-- When your change proposal page is completed and ready for review and announcement -->
<!-- When your change proposal page is completed and ready for review and announcement -->
<!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler -->
<!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler -->
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== Detailed Description ==
== Detailed Description ==
For a long time, the default Fedora wallpaper used PNG format to preserve the integrity of the design. The drawback is the large file size for packaging and for the time of day animation.
For a long time, the default Fedora wallpaper used PNG format to preserve the integrity of the design. The drawback is the large file size for packaging and for the time of day animation. The Design team switched to JXL to address the issue drastically saving the size of the media while maintaining the quality of the wallpapers.
The Design team switched to JXL to address the issue drastically saving the size of the media while supporting the .<!-- Expand on the summary, if appropriate.  A couple sentences suffices to explain the goal, but the more details you can provide the better. -->


== Feedback ==
== Feedback ==
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     https://fedoraproject.org/wiki/Changes/perl5.26 (major upgrade to a popular software stack, visible to users of that stack)
     https://fedoraproject.org/wiki/Changes/perl5.26 (major upgrade to a popular software stack, visible to users of that stack)
-->
-->
* The size of the default wallpaper is drastically reduced when using JXL format compared to PNG. An example  
* The size of the default wallpaper is drastically reduced when using JXL format compared to PNG. An example is on this [Fedora 42 Default Wallpaper ticket](https://gitlab.com/fedora/design/team/release-artwork/default-wallpaper/-/issues/21#note_2306684940) showing both versions for comparison.


== Scope ==
== Scope ==
* Proposal owners:
* Proposal owners:
The Design team switch the format from PNG to JXL format for the default wallpaper on Fedora Workstation and Spin variants.<!-- What work do the feature owners have to accomplish to complete the feature in time for release?  Is it a large change affecting many parts of the distribution or is it a very isolated change? What are those changes?-->
The Design team switch the format from PNG to JXL format for the default wallpaper on Fedora Workstation and Spin variants (optional for spins setting a different default backgrounds).<!-- What work do the feature owners have to accomplish to complete the feature in time for release?  Is it a large change affecting many parts of the distribution or is it a very isolated change? What are those changes?-->


* Other developers: <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Other developers: <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
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A good "how to test" should answer these four questions:
A good "how to test" should answer these four questions:


0. What special hardware / data / etc. is needed (if any)?
What special hardware / data / etc. is needed (if any)?
1. How do I prepare my system to test this change? What packages
1. How do I prepare my system to test this change? What packages
need to be installed, config files edited, etc.?
need to be installed, config files edited, etc.?
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3. What are the expected results of those actions?
3. What are the expected results of those actions?
-->
-->
 
* Up to date Fedora Linux 41 Workstation and variants (spins included).
* Enable [COPR repository](https://copr.fedorainfracloud.org/coprs/g/design-suite/fxx-backgrounds/) from ''@design-suite/fxx-backgrounds'' or download from the [main repository](https://koji.fedoraproject.org/koji/buildinfo?buildID=2658799)
* For Workstation Edition and variants like Cinammon spin and Design Suite, install both ''f42-backgrounds-base'' and ''f42-background-gnome'' using the command <nowiki>sudo dnf install f42-backgrounds-{base,gnome}</nowiki>.
* For KDE Edition and variants, install both ''f42-backgrounds-base'' and ''f42-background-kde'' using the command <nowiki>sudo dnf install f42-backgrounds-{base,kde}</nowiki>
* For XFCE  and variants, install both ''f42-backgrounds-base'' and ''f42-background-xfce'' using the command <nowiki>sudo dnf install f42-backgrounds-{base,xfce}</nowiki>
* For Budgie Edition, install both ''f42-backgrounds-base'' and ''f42-background-budgie'' using the command <nowiki>sudo dnf install f42-backgrounds-{base,budgie}</nowiki>
* For MATE and variants like Design Suite, install both ''f42-backgrounds-base'' and ''f42-background-mate'' using the command <nowiki>sudo dnf install f42-backgrounds-{base,mate}</nowiki>
<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->


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  - Green has been scientifically proven to be the most relaxing color. The move to a default background color of green with green text will result in Fedora users being the most relaxed users of any operating system.
  - Green has been scientifically proven to be the most relaxing color. The move to a default background color of green with green text will result in Fedora users being the most relaxed users of any operating system.
-->
-->
Install the packaged default wallpaper
The change is invisible for the uses with lower footprint.
== Dependencies ==
== Dependencies ==
<!-- What other packages (RPMs) depend on this package?  Are there changes outside the developers' control on which completion of this change depends?  In other words, completion of another change owned by someone else and might cause you to not be able to finish on time or that you would need to coordinate?  Other upstream projects like the kernel (if this is not a kernel change)? -->
<!-- What other packages (RPMs) depend on this package?  Are there changes outside the developers' control on which completion of this change depends?  In other words, completion of another change owned by someone else and might cause you to not be able to finish on time or that you would need to coordinate?  Other upstream projects like the kernel (if this is not a kernel change)? -->
 
None.
<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->




== Contingency Plan ==
== Contingency Plan ==
 
Revert to PNG format.
<!-- If you cannot complete your feature by the final development freeze, what is the backup plan?  This might be as simple as "Revert the shipped configuration".  Or it might not (e.g. rebuilding a number of dependent packages).  If you feature is not completed in time we want to assure others that other parts of Fedora will not be in jeopardy.  -->
<!-- If you cannot complete your feature by the final development freeze, what is the backup plan?  This might be as simple as "Revert the shipped configuration".  Or it might not (e.g. rebuilding a number of dependent packages).  If you feature is not completed in time we want to assure others that other parts of Fedora will not be in jeopardy.  -->
* Contingency mechanism: (What to do?  Who will do it?) N/A (not a System Wide Change)  <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Contingency mechanism: (What to do?  Who will do it?) N/A (not a System Wide Change)  <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
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<!-- Does finishing this feature block the release, or can we ship with the feature in incomplete state? -->
<!-- Does finishing this feature block the release, or can we ship with the feature in incomplete state? -->
* Blocks release? N/A (not a System Wide Change), Yes/No <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Blocks release? N/A (not a System Wide Change), Yes/No <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->


== Documentation ==
== Documentation ==

Latest revision as of 23:15, 13 February 2025

Guidance
For details on how to fill out this form, see the documentation.
Report issues
To report an issue with this template, file an issue in the pgm_docs repo.


Switch to JXL format for Default Wallpaper

This is a proposed Change for Fedora Linux.
This document represents a proposed Change. As part of the Changes process, proposals are publicly announced in order to receive community feedback. This proposal will only be implemented if approved by the Fedora Engineering Steering Committee.

Summary

The default Fedora wallpaper will switch from PNG to JXL format.

Owner


Current status

  • Targeted release: Fedora Linux 42
  • Last updated: 2025-02-13
  • [<link to devel-announce post will be added by Wrangler> Announced]
  • [<will be assigned by the Wrangler> Discussion thread]
  • FESCo issue: <will be assigned by the Wrangler>
  • Tracker bug: <will be assigned by the Wrangler>
  • Release notes tracker: <will be assigned by the Wrangler>

Detailed Description

For a long time, the default Fedora wallpaper used PNG format to preserve the integrity of the design. The drawback is the large file size for packaging and for the time of day animation. The Design team switched to JXL to address the issue drastically saving the size of the media while maintaining the quality of the wallpapers.

Feedback

Benefit to Fedora

Scope

  • Proposal owners:

The Design team switch the format from PNG to JXL format for the default wallpaper on Fedora Workstation and Spin variants (optional for spins setting a different default backgrounds).

  • Other developers:
  • Policies and guidelines: N/A (not needed for this Change)
  • Trademark approval: N/A (not needed for this Change)
  • Alignment with the Fedora Strategy:

Upgrade/compatibility impact

No major impact for desktop environment supporting JXL format. If needed, convert JXL to JPEG as fallback.


Early Testing (Optional)

Do you require 'QA Blueprint' support? Y/N

How To Test

  • Up to date Fedora Linux 41 Workstation and variants (spins included).
  • Enable [COPR repository](https://copr.fedorainfracloud.org/coprs/g/design-suite/fxx-backgrounds/) from @design-suite/fxx-backgrounds or download from the [main repository](https://koji.fedoraproject.org/koji/buildinfo?buildID=2658799)
  • For Workstation Edition and variants like Cinammon spin and Design Suite, install both f42-backgrounds-base and f42-background-gnome using the command sudo dnf install f42-backgrounds-{base,gnome}.
  • For KDE Edition and variants, install both f42-backgrounds-base and f42-background-kde using the command sudo dnf install f42-backgrounds-{base,kde}
  • For XFCE and variants, install both f42-backgrounds-base and f42-background-xfce using the command sudo dnf install f42-backgrounds-{base,xfce}
  • For Budgie Edition, install both f42-backgrounds-base and f42-background-budgie using the command sudo dnf install f42-backgrounds-{base,budgie}
  • For MATE and variants like Design Suite, install both f42-backgrounds-base and f42-background-mate using the command sudo dnf install f42-backgrounds-{base,mate}

User Experience

The change is invisible for the uses with lower footprint.

Dependencies

None.


Contingency Plan

Revert to PNG format.

  • Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)
  • Contingency deadline: N/A (not a System Wide Change)
  • Blocks release? N/A (not a System Wide Change), Yes/No

Documentation

N/A (not a System Wide Change)

Release Notes

Retrieved from "https://fedoraproject.org/w/index.php?title=Changes/SwitchToJXLforDefaultWallpaper&oldid=730743"