codeberg menu bar / top bar unthemed

### Is there an existing issue outlining your problem?

- [x] I have searched the existing issues and they do not solve my problem.

### What userstyle are you seeing the problem on?

lbl:codeberg

### Description

The navigation bar / top bar is missing the userstyle color

### Relevant screenshots

### Browser version(s) this issue occurs on

Firefox v155.0.1

### Stylus extension version

Stylus 2.4.11

### Installed version of the userstyle

v2026.08.16

### Any additional comments?

_No response_

Start in the lbl:codeberg userstyle and search for the navigation or top-bar selectors, using the attached screenshot to identify the unthemed area. Update the relevant styling so the bar uses the userstyle colors, then preview the page in Firefox and confirm the navigation bar matches the rest of the theme.

Written by the indexing model from the issue text.