Problem with librsvg-2.52.0

[pillmuncher]

After the weekly update of Solus Linux yesterday the User Indicator icon (Numix/scalable/actions/system-shutdown-symbolic.svg) had disappeared both from the Budgie Panel, as well as the LightDM login screen, yet not from the file system. It has since been determined that a downgrade from librsvg-2.52.0 to librsvg-2.50.7 fixes the problem. Thought y'all oughta know.

See also:
https://discuss.getsol.us/d/7442-user-indicator-icon-missing/7
https://dev.getsol.us/T9920

[palob]

I can confirm this. I don't see a shutdown icon in GNOME on Arch but I didn't notice so far, maybe I took it for a design choice.

[Foggalong]

That's really weird, especially that the presence of the numix-icon-theme package is causing issues for other themes

[algent-al]

That's really weird, especially that the presence of the numix-icon-theme package is causing issues for other themes

I think the reason for that is because the affected icon themes are inhering icons from Numix.
For example you can see Surfn index.theme:
https://github.com/erikdubois/Surfn/blob/master/surfn-icons/Surfn/index.theme#L4

[Foggalong]

That's useful intel, thanks Algent!

[Noobsai]

I defined the width property in the svg file and problem is gone
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16.0243" width="16" height="16.02">

[Foggalong]

In which case this is almost certainly a bug with librsvg 2.52, not numix-icon-theme; the height and width attributes are optional in the SVG spec (default 100%, with us controlling size via viewbox).

We could add a width attribute to any SVG file missing them to work around the problem, but that should only be a temporary fix until librsvg fixes whatever the problem is on their end.

[pillmuncher]

I opened an issue at GNOME's gitlab: https://gitlab.gnome.org/GNOME/librsvg/-/issues/797

[Foggalong]

Thanks @pillmuncher, will tack this issue there for now! I just did a quick check and there are over 20,000 SVG files across our main themes which don't have a width attribute 😰

[Foggalong]

Upstream bug has now been fixed, pegged for release in 2.52.1 pending a fix for another unrelated bug.