warty warthog brown has no GTK2 Theme (in Dark Mode)

[srueegger]

Expected Behavior

When selecting the brown "Warty Warthog" accent color in Ubuntu 24.10 while using Dark Mode, a corresponding GTK2 theme should be applied, just like with other accent colors.

Actual Behavior

When selecting the "Warty Warthog" accent color in Dark Mode, no corresponding GTK2 theme is loaded. This results in applications using GTK2 (such as FileZilla Pro) not reflecting the selected accent color, making them visually inconsistent with the rest of the system. Other accent colors work as expected.

Steps to Reproduce the Problem

1. Open "Settings" and navigate to "Appearance".
2. Under "Style", select "Dark Mode".
3. Under "Accent Colors", select "Warty Warthog" (brown).
4. Open a GTK2 application (e.g., FileZilla Pro).
5. Notice that no corresponding GTK2 theme is applied.

Software that presents the issue

• Name: FileZilla Pro (or any GTK2 application)
• Version: FileZilla Pro 3.68.1 official build, compiled on 2024-11-04
• OS version: Ubuntu 24.10
• Yaru Version: 24.10.4-0ubuntu1

Screenshot FileZilla Pro with Yaru-olive-dark

Screenshot FileZilla Pro with Yaru-wartywarthog-dark

I know that GTK2 has been EoL for a long time, and I'm not sure if the brown accent color will even remain in future Ubuntu releases – or if a fix is still worth it – but I still wanted to report it. :)