themes: fix match highlight contrast in focused quick pick rows (2026 themes)

[hawkticehurst]

Fixes #314035

#313740 increased the contrast of the focused quick pick row in the 2026 Dark and 2026 Light themes by switching the focus background to a saturated blue and the row foreground/icon foreground to white. This unfortunately caused a regression for search match highlights on the focused row: the matched substring still rendered using list.highlightForeground (blue), producing blue text on a blue background.

This PR adds list.focusHighlightForeground: #FFFFFF to both 2026 themes so match highlights on the focused row are rendered in white — matching the focused row's foreground/icon colors. The original list.highlightForeground (blue) is preserved for unfocused rows, retaining the prior accessibility fix.

Fix:

Before:

Verified against

1. Quick pick background (unfocused rows) — blue match highlight remains legible ✓
2. Focused quick pick row — white match highlight is legible against the saturated blue focus background ✓

Co-authored-by: Copilot 223556219+Copilot@users.noreply.github.com

[vs-code-engineering]

This PR will be automatically cherry-picked to release/1.119 when merged.

[Copilot]

Pull request overview

This PR aims to restore legible search match highlighting on the focused quick pick row in the 2026 Light/Dark themes after the focused-row background was changed to a saturated blue, by overriding the focused match highlight color to white.

Changes:

• Add list.focusHighlightForeground: #FFFFFF to the 2026 Light theme.
• Add list.focusHighlightForeground: #FFFFFF to the 2026 Dark theme.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
extensions/theme-defaults/themes/2026-light.json	Overrides focused list match highlight color to white to address blue-on-blue highlights in focused quick pick rows.
extensions/theme-defaults/themes/2026-dark.json	Same override for the 2026 Dark theme.

[hawkticehurst]

Addressed in 35eb2ba. Replaced the global list.focusHighlightForeground override with a new quick-pick-specific token quickInputList.focusHighlightForeground (defaults to list.focusHighlightForeground), and updated quickInput.css to use it. The 2026 Dark/Light themes now set only this scoped token to white, leaving general list/tree match highlights untouched.

[vs-code-engineering]

📬 CODENOTIFY

The following users are being notified based on files changed in this PR:

@TylerLeonhardt

Matched files:

• src/vs/platform/quickinput/browser/media/quickInput.css

[github-actions]

Screenshot Changes

Base: ebfbb71d Current: 2e5e2958

Changed (1)

agentSessionsViewer/NeedsInput/Light

Before	After