mittwald/flow

CodeEditor: Line number background color in dark mode

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#2,778 opened on Aug 5, 2026

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 (0 comments) (0 reactions) (1 assignee)TypeScript (2 forks)auto 404
a11ygood first issuestyling

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Description

Flow Version

current docs

Bug Description

When view the documentation for CodeEditor component in DarkMode, the current line number background is bright. This makes the line number unreadable.

Steps to Reproduce

  1. Open documentation for CodeEditor component in DarkMode
  2. Notice Line number background

Expected Behavior

contrast color used

Actual Behavior

bright color used

How much does this bug impact you?

🟡 Moderate – It's annoying but there's a workaround

Relevant Logs or Error Output

Browser Version

Safari Version 26.6 (21624.4.5.11.5)

Before Submitting

  • I have checked that this issue has not already been reported.
  • I have provided all necessary information to reproduce the issue.

Contributor guide

Research direction
Investigate the CodeEditor component's source files, especially the styles related to the line numbers. Look for dark mode color variables and identify why the line number background is too bright. Provide guidance on how to adjust it to a proper contrast color.
Tech stack
csstypescript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitCSS
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80