https://bugs.kde.org/show_bug.cgi?id=486766
Bug ID: 486766
Summary: Gtk-WARNING **: GtkGizmo 0x6127b629ff10 (slider)
reported min height -2, but sizes must be >= 0
Classification: Plasma
Product: Breeze
Version: 6.0.2
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: gtk theme
Assignee: plasma-b...@kde.org
Reporter: benjamin.henn...@wanadoo.fr
CC: agrine...@gmail.com, uhh...@gmail.com
Target Milestone: ---
Created attachment 169293
--> https://bugs.kde.org/attachment.cgi?id=169293&action=edit
UI file with Scrollbar
SUMMARY
Whenever a GtkScrollbar is displayed, the terminal outputs:
> Gtk-WARNING **: 08:38:04.284: GtkGizmo 0x6127b629ff10 (slider) reported min
> height -2, but sizes must be >= 0
This does not happen with GTK_THEME=adwaita, so it is most likely a breeze-gtk
issue.
See also https://gitlab.gnome.org/GNOME/gtk/-/issues/4446 which suggests such
issues are CSS-related.
STEPS TO REPRODUCE
1. Download the attached gizmo.ui. It contains a GtkWindow with a GtkScrollbar.
2. Open it via `gtk4-builder-tool preview gizmo.ui` (with breeze as gtk theme
in KCM)
3. See the warnings in the terminal output.
4. Try again with `GTK_THEME=adwaita gtk4-builder-tool preview gizmo.ui`. No
warnings.
OBSERVED RESULT
> Gtk-WARNING **: 08:38:04.284: GtkGizmo 0x6127b629ff10 (slider) reported min
> height -2, but sizes must be >= 0
EXPECTED RESULT
No warning
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