Interface randomly jitters

[tqwewe]

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Issues with the Zellij UI / behavior / crash

Issue description

Zellij UI occasionally glitches and starts jittering until I exit the session and start a new one.

https://github.com/user-attachments/assets/a69acced-b046-413d-9b16-d0259d3328dc

This happens randomly sometimes, and constantly jitters even when:

• Changing tabs
• Closing Alacritty and reopening (resuming the session)

The only fix I've found has been is to exit and delete the session and create a new one.

Minimal reproduction

Not sure how to reproduce.

Other relevant information

I'm on mac, and use Alacritty as my terminal.

[imsnif]

Does it happen without zjstatus?

[tqwewe]

I'll have to use zellij for a few days without it enabled to find out, since it sometimes happens out of the blue so its difficult to reproduce

[kabeero]

I have the same issue with zellij + zjstatus,

@tqwewe do you have this enabled in zjstatus?

hide_frame_for_single_pane "true"

[tqwewe]

@kabeero yep I do have that enabled actually.

[kabeero]

@tqwewe : I have a feeling hide_frame_for_single_pane is the culprit ... I've set it to false and I haven't seen any jittering. I'll run a few more days to see if it's actually fixed

@imsnif is there a way to change the border outline color? I saw another PR with theme support, but maybe there's an existing way to do it

https://github.com/zellij-org/zellij/pull/3242 (Theme definition)