Replace Ice Cold with Volna for Plasma 5.18
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Authored by ngraham on Mon, Jan 27, 8:00 PM.

Details

Summary

Volna won the wallpaper competition, so time to add it to Breeze as the new default!

Test Plan

Apply patch, compile, and restart plasmashell

Diff Detail

Repository
R31 Breeze
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Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.
ngraham created this revision.Mon, Jan 27, 8:00 PM
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ngraham requested review of this revision.Mon, Jan 27, 8:00 PM

Outstanding concern: The full collection is much larger than Ice Cold; 46 Mb compared to 13 Mb for all the Ice Cold versions. The author already did some optimization, but everything is still quite a bit larger in total.

Is there anyone in VDG or Plasma who's got a bunch of experience with PNG image size optimization?

davidedmundson accepted this revision.Mon, Jan 27, 9:05 PM
This revision is now accepted and ready to land.Mon, Jan 27, 9:05 PM
ngraham updated this revision to Diff 74466.Mon, Jan 27, 10:00 PM

Use https://www.imagesmaller.com/ to reduce total size to 22 Mb

broulik added a subscriber: broulik.EditedMon, Jan 27, 10:38 PM

What's with the odd dithering, though? Is that intentional?

FTR at 3840x2160 our past images were:
5.16 (ice cold) 1.6 MiB
5.14 (the one with the galaxy) 3.9 MiB
5.12 (the blue-brown stripe) 3.2 MiB
5.10 2.3 MiB
5.9 (canoppee with the "9") a whopping 5.9 MiB

So this one doesn't seem too excessive? Compared to ice cold, maybe, but not compared to the ones before it imho.

ndavis added a subscriber: ndavis.Mon, Jan 27, 11:21 PM

What's with the odd dithering, though? Is that intentional?

FTR at 3840x2160 our past images were:
5.16 (ice cold) 1.6 MiB
5.14 (the one with the galaxy) 3.9 MiB
5.12 (the blue-brown stripe) 3.2 MiB
5.10 2.3 MiB
5.9 (canoppee with the "9") a whopping 5.9 MiB

So this one doesn't seem too excessive? Compared to ice cold, maybe, but not compared to the ones before it imho.

Keep in mind you are comparing 4k to 5k, but I'm not disagreeing.

Luwx added a subscriber: Luwx.Tue, Jan 28, 12:21 AM

The compression affected the wallpaper quality quite a lot, especially at lower resolutions. There are some artifacts (unnaturally bright pixels)

If saving space is very important, JPEG format may be the best option. The loss of quality for this kind of image (lots of noise) is minimal.

ngraham planned changes to this revision.Tue, Jan 28, 1:26 AM

That's a good point. I'll try a high-quality-level JPEG and see how that looks.

ngraham updated this revision to Diff 74510.Tue, Jan 28, 4:16 PM

Replace those lousy dithered PNGs with JPEGs created using the MozJPEG encoder at https://squoosh.app

This revision is now accepted and ready to land.Tue, Jan 28, 4:16 PM

@IlyaBizyaev suggested using the MozJPEG encoder at https://squoosh.app/ and the results are fantastic. I can detect no difference in appearance whatsoever from normal viewing distances (i.e. not zoomed in to 500%) and the total size is now down to 8 Mb. I used a 90% quality level to try to keep the visual fidelity as much as possible.

VDG folks approved in the chatroom; landing it!

This revision was automatically updated to reflect the committed changes.