fix(dark mode): reclaim border-colour and shadow utilities for tokens

[talissoncosta]

Changes

Contributes to #6606. Same map-remove pattern as the text-colour reclaim, extended to two more utility families found by auditing token-vs-Bootstrap collisions.

• border-colour (danger/info/success/warning): token .border-* was shadowed by Bootstrap. Values are identical, so this is a no-op; it just moves ownership to the token layer.
• shadow (sm/lg/none): .shadow-sm and .shadow-lg were silently using Bootstrap's shadows, while .shadow-md/.shadow-xl (token-only) used the DS tokens, so the scale was half-and-half. Now all of sm/md/lg/xl use --shadow-*. Suffixless .shadow stays Bootstrap.

How did you test this code?

Compiled the stylesheet: .border-* now resolve to var(--color-border-*), and .shadow-sm/.shadow-lg to var(--shadow-*). Border is a no-op (identical values). Shadow is a real change but tiny footprint (shadow-sm: 1 usage, shadow-lg: 0) — the DS shadows are subtler; worth a quick eyeball on that one shadow-sm element.

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Project	Deployment	Actions	Updated (UTC)
docs	Building	Preview, Comment	Jul 10, 2026 4:47pm
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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: ec87a181-2898-4a3c-a6f8-6499e0de78c0

📥 Commits

Reviewing files that changed from the base of the PR and between 3eeaf38 and 81322f5.

📒 Files selected for processing (1)

• frontend/web/styles/3rdParty/_bootstrap.scss

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📝 Walkthrough

Walkthrough

The Bootstrap stylesheet now removes the danger, info, success, and warning border-colour utilities, plus the sm, lg, and none shadow utilities. The modified maps are re-merged into Bootstrap’s $utilities configuration.

Estimated code review effort: 2 (Simple) | ~5 minutes

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_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-e2e:pr-7986	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api-test:pr-7986	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-7986	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-7986	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-7986	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-7986	Finished ✅	Results ✅

[talissoncosta]

Consolidated into #7982 so the whole dark-mode colour change can be QA'd in one pass. Same commit is included there.

[github-actions]

Playwright Test Results (oss - depot-ubuntu-latest-16)

 3 passed

Details

 3 tests across 2 suites
 11.6 seconds
 81322f5
 🔄 Run: #18163 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 6 passed

Details

 6 tests across 5 suites
 36 seconds
 81322f5
 🔄 Run: #18163 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 1 passed

Details

 1 test across 1 suite
 11.9 seconds
 81322f5
 🔄 Run: #18163 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 1 failed
 1 passed

Details

 2 tests across 2 suites
 59.5 seconds
 81322f5
 📦 Artifacts: View test results and HTML report
🔄 Run: #18163 (attempt 1)

Failed tests

firefox › tests/environment-permission-test.pw.ts › Environment Permission Tests › Environment-level permissions control access to features, identities, and segments @enterprise

[github-actions]

Visual Regression

19 screenshots compared. See report for details.
View full report