Some taskbar buttons are not displayed

[matmartin]

Describe the bug

As you can see in the attached screenshot, the following taskbar buttons are not displayed:

• Snap Left
• Snap Right
• Minimize
• Overview

The taskbar buttons are invisible, but can be clicked and then perform the associated action. Hovering over them with the mouse also displays the tooltip.

To Reproduce

The display issue occurs on my Ubuntu 24.04.3 LTS system whenever the taskbar is visible in the Headlamp GUI. I don't have the display problem on another system with macOS Sequoia 15.6.1.

Environment (please provide info about your environment):

• Installation type: Headlamp-0.35.0-linux-x64.AppImage
• Headlamp Version: 0.35.0

Are you able to fix this issue?

No.

Additional Context

[skoeva]

Thanks for submitting this issue!

Do you have any screenshots of tooltips displaying over invisible icons? That would be useful to see

[matmartin]

I created a short screencast that shows how the tooltips of the invisible taskbar buttons are displayed and how Snap Left and Snap Right work with the invisible buttons:

Screencast.from.2025-09-08.17-59-11.webm

[skoeva]

I see, thanks for the screencast. I'm curious if one of the buttons appears missing, it doesn't look like enough space compared to what I see when running the app (also on Ubuntu):

Do you notice this same issue on different themes?

[matmartin]

I've tried all the available themes. On my Ubuntu system, the same display issue occurs with all the themes.

[skoeva]

@matmartin it looks like this should have been fixed by #3920 so will close for now but feel free to reopen if you notice the issue is unresolved even with the changes