Fuzzy file search (@) selection highlight has insufficient contrast

What version of Codex CLI is running?

0.140.0

What subscription do you have?

Pro

Which model were you using?

gpt-5.5

What platform is your computer?

Darwin 25.5.0 arm64 arm

What terminal emulator and version are you using (if applicable)?

WezTerm

Codex doctor report

What issue are you seeing?

When using @ to open the fuzzy file search, the search results themselves are readable, but the currently selected item is extremely difficult to identify.

As I move through the results with the arrow keys, the selected row appears only slightly bolder (or otherwise minimally different) from the surrounding entries. The contrast between selected and unselected items is too subtle, especially in larger result sets.

What steps can reproduce the bug?

1. Open Codex CLI.
2. Type @ to open the file fuzzy-search picker.
3. Enter a search term that returns multiple results.
4. Use the Up/Down arrow keys to move through the results.
5. Observe the visual difference between the selected item and unselected items.

What is the expected behavior?

Expected behavior:

• The selected item should have a clearly visible highlight.
• It should be immediately obvious which item will be selected when pressing Enter.
• A background highlight, stronger color change, selection marker, or other higher-contrast indicator would help.

Actual behavior:

• The selected item is only subtly distinguished from neighboring entries.
• I often have to stop and carefully inspect the list to determine which item is currently selected.

In the screenshot below, base frontend/ is the selected row:
<img width="318" height="260" alt="Image" src="https://github.com/user-attachments/assets/25448cd5-8d48-4928-bb56-54dddaef15cc" />

Additional information

_No response_