themes/duru: fix undefined ${gray} in venv prompt

[koppor]

The venv function in the duru theme colors the " in " text with ${gray}, but gray is never defined: the color variables are all _omb_prompt_* (lib/omb-prompt-colors.sh), and plain gray is not among the deprecated compatibility names either (black, cyan, white, orange and the bold_*/underline_*/background_* variants are). The variable expands to empty, so the text renders in whatever color was active before instead of gray.

Use ${_omb_prompt_gray}, matching the _omb_prompt_red already used on the next segment.

Noticed while porting duru to a custom theme.

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https://claude.ai/code/session_01SABAE23V7T3PvYht4QmG9j

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PR Summary by Qodo

themes/duru: Fix undefined gray color in venv prompt

🐞 Bug fix 🕐 Less than 5 minutes

AI Description

• Fix venv prompt segment to use a defined gray color variable.
• Ensure " in " renders consistently gray before the virtualenv name.

Diagram

graph TD
  A["Shell prompt"] --> B["duru.theme.sh"] --> C["venv()"] --> D{"VIRTUAL_ENV set?"}
  D -->|"yes"| E["Print: gray ' in ' + red env"]
  D -->|"no"| F["Print nothing"]
  subgraph Legend
    direction LR
    _proc["Process"] ~~~ _dec{"Decision"}
  end

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High-Level Assessment

The following are alternative approaches to this PR:

1. Add a global 'gray' compatibility alias

• ➕ Avoids touching individual themes that may reference ${gray}
• ➕ Improves backward compatibility for third-party themes
• ➖ Expands the deprecated compatibility surface area
• ➖ May mask similar issues rather than fixing them at the source

Recommendation: The PR's approach is best for this case: duru should use the supported omb_prompt* variables directly, matching existing theme style (_omb_prompt_red). A global 'gray' alias could be considered separately as a broader compatibility policy decision.

Files changed (1) +1 / -1

Bug fix (1) +1 / -1

duru.theme.shUse _omb_prompt_gray for venv segment coloring +1/-1

Use _omb_prompt_gray for venv segment coloring

• Replaces an undefined ${gray} reference with ${_omb_prompt_gray} when printing the " in " text before the virtualenv name. This ensures the segment consistently renders in gray rather than inheriting the previous color.

themes/duru/duru.theme.sh

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[akinomyoga]

Thank you for the report. I've checked the history, but it seems to have been broken since the beginning when the setting was introduced in e65c390.