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Fix browser chrome appearance authority across focus transitions - #10224
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Included review availability: Your plan includes up to 10 reviews per rolling hour; 2 remain after this review. 📝 WalkthroughWalkthroughBrowser chrome styling now follows the resolved surface color scheme. Inherited appearance remains separate for WebKit refreshes. Browser controls, suggestions, popovers, and dock text receive consistent scheme handling, with expanded regression tests. ChangesBrowser Chrome Scheme
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to The browser appearance behavior is merge-ready after normal checks and review; no actionable merge-blocking risk remains. Possibly related PRs
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Inline comments:
In `@Sources/Panels/BrowserPanelView.swift`:
- Around line 265-269: Capture the ambient color scheme in PanelContentView
before applying the resolved colorScheme environment override, then pass it as a
separate input to BrowserPanelView. Update handleInheritedColorSchemeChange() to
use this inherited value while keeping resolvedColorScheme as the browser-chrome
authority, and add a regression test covering an inherited-scheme-only change
that triggers the WebKit refresh path.
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Sources/Panels/BrowserPanelView.swiftcmuxTests/BrowserChromeMetricsTests.swiftcmuxTests/BrowserPanelTests.swift
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Summary
Browser toolbar chrome now treats the explicit
WindowAppearanceSnapshot.resolvedColorSchemepassed for the surface as its single appearance authority. Refreshes and SwiftUI/AppKit hosting transitions can no longer replace it with an inherited ambient scheme; the inherited scheme is retained only for WebKit system-theme refreshes. The browser subtree, suggestions portal, and browser popovers all receive the explicit surface scheme.Behavior coverage exercises light/dark surface themes against light/dark inherited app appearance, including a simulated focus/hosting transition where the inherited scheme flips. Dock active-item text is checked against the same surface authority.
Prior art and scope
PR #10149 (now merged) fixes the Dock/sidebar side of this family: it makes the terminal-derived
WindowAppearanceSnapshot.resolvedColorSchemeauthoritative for Dock and sidebar roots, Bonsplit chrome/backgrounds, and AppKit sidebar controls, including Dock item foreground resolution. This branch is based on that merge and does not duplicate or alter those Dock fixes.This PR adds the browser-side lifecycle fix that #10149 does not cover.
BrowserPanelViewpreviously seeded the explicit scheme but later refreshedBrowserChromeStylefrom@Environment(\.colorScheme), which can be the window/app appearance while a focused or rehosted browser view is being rebuilt. The refresh seam and all browser chrome presentation boundaries now use the immutable surface authority instead.Testing
swiftc -frontend -parse Sources/Panels/BrowserPanelView.swiftswiftc -frontend -parse cmuxTests/BrowserChromeMetricsTests.swiftswiftc -frontend -parse cmuxTests/BrowserPanelTests.swift./scripts/lint-pbxproj-test-wiring.shpython3 scripts/check-package-resolved-policy.pypython3 scripts/check-workspace-package-groups.py --check./tests/test_ci_swift_warning_budget.shThe intermittent focus race is covered at the deterministic appearance-authority seam rather than with screenshots. No app build,
xcodebuild test, or XCUITest was run locally per the repository workflow.Closes #10210
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@codesmith-botwith what you need. Autofix is disabled.Summary by cubic
Keeps the browser toolbar, suggestions portal, and browser popovers on the explicit surface
resolvedColorSchemeacross focus and hosting transitions. Previously these views could inherit@Environment(\.colorScheme)and flip light/dark; now the surface scheme is the single authority, and the inherited scheme is used only to refresh WebKit’s system theme..environment(\.colorScheme, resolvedColorScheme)at browser chrome boundaries and replaces toolbar coloring reads of@Environment(\.colorScheme).inheritedColorSchemechange refreshes WebKit only;resolvedColorSchemechange refreshes chrome style and appearance-driven colors.inheritedColorSchemetoBrowserPanelViewinitializer; panel hosts pass the ambient scheme so WebKit can refresh without affecting chrome.resolvedBrowserChromeColorSchemeto return the surface scheme; keeps optionalambientColorSchemefor tests.BrowserChromeStyle.colorScheme; derives omnibar and popup colors from the surface scheme; ensures suggestions and popovers useresolvedColorScheme.Written for commit f0da2a5. Summary will update on new commits.
Summary by CodeRabbit
Bug Fixes
Tests