Improve macOS platform integration.

- Allow switching between themes without restart (except classic)
- Rework icon loading and recolouring logic to react to theme changes
- Automatically react to light/dark theme change
- Remove explicit selection of monochrome tray icon variant (selected
  automatically now)
- Update theme background colours for Big Sur
- Update application icon to match Big Sur HIG

The tray icon doesn't respond perfectly to theme changes yet on Big Sur,
since we need different icons for dark and light theme and cannot simply
let the OS recolour the icon for us (we do that, too, but only as an
additional fallback). At the moment, there is no signal to listen to
that would allow this.

This patch adds a few generic methods to OSUtils for detecting and
communicating theme changes, which are only stubs for Windows and Linux at
the moment and need to be implemented in future commits.

Fixes #4933
Fixes #5349

.gitattributes

@@ -11,3 +11,6 @@ AppImage-Recipe.sh export-ignore
 # github-linguist language hints
 *.h linguist-language=C++
 *.cpp linguist-language=C++
+
+# binary files
+*.ai binary

src/gui/Application.cpp

@@ -23,6 +23,7 @@
 #include "core/Bootstrap.h"
 #include "core/Config.h"
 #include "core/Global.h"
+#include "gui/Icons.h"
 #include "gui/MainWindow.h"
 #include "gui/MessageBox.h"
 #include "gui/osutils/OSUtils.h"
@@ -127,6 +128,12 @@ Application::Application(int& argc, char** argv)
         qWarning()
             << QObject::tr("The lock file could not be created. Single-instance mode disabled.").toUtf8().constData();
     }
+
+    connect(osUtils, &OSUtilsBase::interfaceThemeChanged, this, [this]() {
+        if (config()->get(Config::GUI_ApplicationTheme).toString() != "classic") {
+            applyTheme();
+        }
+    });
 }
 
 Application::~Application()
@@ -174,15 +181,15 @@ void Application::applyTheme()
         }
 #endif
     }
-
+    QPixmapCache::clear();
     if (appTheme == "light") {
-        setStyle(new LightStyle);
+        auto* s = new LightStyle;
-        // Workaround Qt 5.15+ bug
+        setPalette(s->standardPalette());
-        setPalette(style()->standardPalette());
+        setStyle(s);
     } else if (appTheme == "dark") {
-        setStyle(new DarkStyle);
+        auto* s = new DarkStyle;
-        // Workaround Qt 5.15+ bug
+        setPalette(s->standardPalette());
-        setPalette(style()->standardPalette());
+        setStyle(s);
         m_darkTheme = true;
     } else {
         // Classic mode, don't check for dark theme on Windows

src/gui/ApplicationSettingsWidget.cpp

@@ -251,8 +251,12 @@ void ApplicationSettingsWidget::loadSettings()
     }
 
     m_generalUi->trayIconAppearance->clear();
+#ifdef Q_OS_MACOS
+    m_generalUi->trayIconAppearance->addItem(tr("Monochrome"), "monochrome");
+#else
     m_generalUi->trayIconAppearance->addItem(tr("Monochrome (light)"), "monochrome-light");
     m_generalUi->trayIconAppearance->addItem(tr("Monochrome (dark)"), "monochrome-dark");
+#endif
     m_generalUi->trayIconAppearance->addItem(tr("Colorful"), "colorful");
     int trayIconIndex = m_generalUi->trayIconAppearance->findData(icons()->trayIconAppearance());
     if (trayIconIndex > 0) {

src/gui/Icons.cpp

@@ -19,6 +19,8 @@
 #include "Icons.h"
 
 #include <QBitmap>
+#include <QIconEngine>
+#include <QPaintDevice>
 #include <QPainter>
 #include <QStyle>
 
@@ -27,8 +29,24 @@
 #include "gui/MainWindow.h"
 #include "gui/osutils/OSUtils.h"
 
+class AdaptiveIconEngine : public QIconEngine
+{
+public:
+    explicit AdaptiveIconEngine(QIcon baseIcon);
+    void paint(QPainter* painter, const QRect& rect, QIcon::Mode mode, QIcon::State state) override;
+    QPixmap pixmap(const QSize& size, QIcon::Mode mode, QIcon::State state) override;
+    QIconEngine* clone() const override;
+
+private:
+    QIcon m_baseIcon;
+};
+
 Icons* Icons::m_instance(nullptr);
 
+Icons::Icons()
+{
+}
+
 QIcon Icons::applicationIcon()
 {
     return icon("keepassxc", false);
@@ -47,45 +65,102 @@ QString Icons::trayIconAppearance() const
     return iconAppearance;
 }
 
-QIcon Icons::trayIcon()
+QIcon Icons::trayIcon(QString style)
 {
-    return trayIconUnlocked();
+    if (style == "unlocked") {
+        style.clear();
+    }
+    if (!style.isEmpty()) {
+        style = "-" + style;
+    }
+
+    auto iconApperance = trayIconAppearance();
+    if (!iconApperance.startsWith("monochrome")) {
+        return icon(QString("keepassxc%1").arg(style), false);
+    }
+
+    QIcon i;
+#ifdef Q_OS_MACOS
+    if (osUtils->isStatusBarDark()) {
+        i = icon(QString("keepassxc-monochrome-light%1").arg(style), false);
+    } else {
+        i = icon(QString("keepassxc-monochrome-dark%1").arg(style), false);
+    }
+#else
+    i = icon(QString("keepassxc-%1%2").arg(iconApperance, style), false);
+#endif
+#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
+    // Set as mask to allow the operating system to recolour the tray icon. This may look weird
+    // if we failed to detect the status bar background colour correctly, but it is certainly
+    // better than a barely visible icon and even if we did guess correctly, it allows for better
+    // integration should the system's preferred colours not be 100% black or white.
+    i.setIsMask(true);
+#endif
+    return i;
 }
 
 QIcon Icons::trayIconLocked()
 {
-    auto iconApperance = trayIconAppearance();
+    return trayIcon("locked");
-
-    if (iconApperance == "monochrome-light") {
-        return icon("keepassxc-monochrome-light-locked", false);
-    }
-    if (iconApperance == "monochrome-dark") {
-        return icon("keepassxc-monochrome-dark-locked", false);
-    }
-    return icon("keepassxc-locked", false);
 }
 
 QIcon Icons::trayIconUnlocked()
 {
-    auto iconApperance = trayIconAppearance();
+    return trayIcon("unlocked");
+}
 
-    if (iconApperance == "monochrome-light") {
+AdaptiveIconEngine::AdaptiveIconEngine(QIcon baseIcon)
-        return icon("keepassxc-monochrome-light", false);
+    : QIconEngine()
+    , m_baseIcon(std::move(baseIcon))
+{
 }
-    if (iconApperance == "monochrome-dark") {
+
-        return icon("keepassxc-monochrome-dark", false);
+void AdaptiveIconEngine::paint(QPainter* painter, const QRect& rect, QIcon::Mode mode, QIcon::State state)
+{
+#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
+    double dpr = !kpxcApp->testAttribute(Qt::AA_UseHighDpiPixmaps) ? 1.0 : painter->device()->devicePixelRatioF();
+#else
+    double dpr = !kpxcApp->testAttribute(Qt::AA_UseHighDpiPixmaps) ? 1.0 : painter->device()->devicePixelRatio();
+#endif
+    QSize pixmapSize = rect.size() * dpr;
+
+    painter->save();
+    painter->drawPixmap(rect, m_baseIcon.pixmap(pixmapSize, mode, state));
+
+    if (getMainWindow()) {
+        QPalette palette = getMainWindow()->palette();
+        painter->setCompositionMode(QPainter::CompositionMode_SourceAtop);
+
+        if (mode == QIcon::Active) {
+            painter->fillRect(rect, palette.color(QPalette::Active, QPalette::ButtonText));
+        } else if (mode == QIcon::Selected) {
+            painter->fillRect(rect, palette.color(QPalette::Active, QPalette::HighlightedText));
+        } else if (mode == QIcon::Disabled) {
+            painter->fillRect(rect, palette.color(QPalette::Disabled, QPalette::WindowText));
+        } else {
+            painter->fillRect(rect, palette.color(QPalette::Normal, QPalette::WindowText));
         }
-    return icon("keepassxc", false);
+    }
+    painter->restore();
+}
+
+QPixmap AdaptiveIconEngine::pixmap(const QSize& size, QIcon::Mode mode, QIcon::State state)
+{
+    QImage img(size, QImage::Format_ARGB32_Premultiplied);
+    img.fill(0);
+    QPainter painter(&img);
+    paint(&painter, QRect(0, 0, size.width(), size.height()), mode, state);
+    return QPixmap::fromImage(img, Qt::NoFormatConversion);
+}
+
+QIconEngine* AdaptiveIconEngine::clone() const
+{
+    return new AdaptiveIconEngine(m_baseIcon);
 }
 
 QIcon Icons::icon(const QString& name, bool recolor, const QColor& overrideColor)
 {
-    QIcon icon = m_iconCache.value(name);
+#ifdef Q_OS_LINUX
-
-    if (!icon.isNull() && !overrideColor.isValid()) {
-        return icon;
-    }
-
     // Resetting the application theme name before calling QIcon::fromTheme() is required for hacky
     // QPA platform themes such as qt5ct, which randomly mess with the configured icon theme.
     // If we do not reset the theme name here, it will become empty at some point, causing
@@ -94,44 +169,25 @@ QIcon Icons::icon(const QString& name, bool recolor, const QColor& overrideColor
     // See issue #4963: https://github.com/keepassxreboot/keepassxc/issues/4963
     // and qt5ct issue #80: https://sourceforge.net/p/qt5ct/tickets/80/
     QIcon::setThemeName("application");
+#endif
 
-    icon = QIcon::fromTheme(name);
+    QString cacheName =
-    if (getMainWindow() && recolor) {
+        QString("%1:%2:%3").arg(recolor ? "1" : "0", overrideColor.isValid() ? overrideColor.name() : "#", name);
-        const QRect rect(0, 0, 48, 48);
+    QIcon icon = m_iconCache.value(cacheName);
-        QImage img = icon.pixmap(rect.width(), rect.height()).toImage();
-        img = img.convertToFormat(QImage::Format_ARGB32_Premultiplied);
-        icon = {};
 
-        QPainter painter(&img);
+    if (!icon.isNull() && !overrideColor.isValid()) {
-        painter.setCompositionMode(QPainter::CompositionMode_SourceAtop);
+        return icon;
-
-        if (!overrideColor.isValid()) {
-            QPalette palette = getMainWindow()->palette();
-            painter.fillRect(rect, palette.color(QPalette::Normal, QPalette::WindowText));
-            icon.addPixmap(QPixmap::fromImage(img), QIcon::Normal);
-
-            painter.fillRect(rect, palette.color(QPalette::Active, QPalette::ButtonText));
-            icon.addPixmap(QPixmap::fromImage(img), QIcon::Active);
-
-            painter.fillRect(rect, palette.color(QPalette::Active, QPalette::HighlightedText));
-            icon.addPixmap(QPixmap::fromImage(img), QIcon::Selected);
-
-            painter.fillRect(rect, palette.color(QPalette::Disabled, QPalette::WindowText));
-            icon.addPixmap(QPixmap::fromImage(img), QIcon::Disabled);
-        } else {
-            painter.fillRect(rect, overrideColor);
-            icon.addPixmap(QPixmap::fromImage(img), QIcon::Normal);
     }
 
+    icon = QIcon::fromTheme(name);
+    if (recolor) {
+        icon = QIcon(new AdaptiveIconEngine(icon));
 #if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
         icon.setIsMask(true);
 #endif
     }
 
-    if (!overrideColor.isValid()) {
+    m_iconCache.insert(cacheName, icon);
-        m_iconCache.insert(name, icon);
-    }
-
     return icon;
 }
 
@@ -161,10 +217,6 @@ QIcon Icons::onOffIcon(const QString& name, bool recolor)
     return icon;
 }
 
-Icons::Icons()
-{
-}
-
 Icons* Icons::instance()
 {
     if (!m_instance) {

src/gui/Icons.h

@@ -28,7 +28,7 @@ class Icons
 {
 public:
     QIcon applicationIcon();
-    QIcon trayIcon();
+    QIcon trayIcon(QString style = "unlocked");
     QIcon trayIconLocked();
     QIcon trayIconUnlocked();
     QString trayIconAppearance() const;

src/gui/MainWindow.cpp

@@ -40,6 +40,7 @@
 #include "gui/Icons.h"
 #include "gui/MessageBox.h"
 #include "gui/SearchWidget.h"
+#include "gui/osutils/OSUtils.h"
 #include "keys/CompositeKey.h"
 #include "keys/FileKey.h"
 #include "keys/PasswordKey.h"
@@ -503,6 +504,8 @@ MainWindow::MainWindow()
     connect(m_ui->actionOnlineHelp, SIGNAL(triggered()), SLOT(openOnlineHelp()));
     connect(m_ui->actionKeyboardShortcuts, SIGNAL(triggered()), SLOT(openKeyboardShortcuts()));
 
+    connect(osUtils, &OSUtilsBase::statusbarThemeChanged, this, &MainWindow::updateTrayIcon);
+
 #if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
     // Install event filter for empty-area drag
     auto* eventFilter = new MainWindowEventFilter(this);
@@ -599,10 +602,10 @@ MainWindow::MainWindow()
     }
 #endif
 
-    QObject::connect(qApp, SIGNAL(anotherInstanceStarted()), this, SLOT(bringToFront()));
+    connect(qApp, SIGNAL(anotherInstanceStarted()), this, SLOT(bringToFront()));
-    QObject::connect(qApp, SIGNAL(applicationActivated()), this, SLOT(bringToFront()));
+    connect(qApp, SIGNAL(applicationActivated()), this, SLOT(bringToFront()));
-    QObject::connect(qApp, SIGNAL(openFile(QString)), this, SLOT(openDatabase(QString)));
+    connect(qApp, SIGNAL(openFile(QString)), this, SLOT(openDatabase(QString)));
-    QObject::connect(qApp, SIGNAL(quitSignalReceived()), this, SLOT(appExit()), Qt::DirectConnection);
+    connect(qApp, SIGNAL(quitSignalReceived()), this, SLOT(appExit()), Qt::DirectConnection);
 
     restoreConfigState();
 }
@@ -1757,8 +1760,10 @@ void MainWindow::initViewMenu()
 
     connect(themeActions, &QActionGroup::triggered, this, [this, theme](QAction* action) {
         config()->set(Config::GUI_ApplicationTheme, action->data());
-        if (action->data() != theme) {
+        if ((action->data() == "classic" || theme == "classic") && action->data() != theme) {
             restartApp(tr("You must restart the application to apply this setting. Would you like to restart now?"));
+        } else {
+            kpxcApp->applyTheme();
         }
     });
 

src/gui/osutils/OSUtilsBase.h

@@ -35,6 +35,11 @@ public:
      */
     virtual bool isDarkMode() const = 0;
 
+    /**
+     * @return OS task / menu bar is dark.
+     */
+    virtual bool isStatusBarDark() const = 0;
+
     /**
      * @return KeePassXC set to launch at system startup (autostart).
      */
@@ -61,6 +66,16 @@ public:
 signals:
     void globalShortcutTriggered(const QString& name);
 
+    /**
+     * Indicates platform UI theme change (light mode to dark mode).
+     */
+    void interfaceThemeChanged();
+
+    /*
+     * Indicates a change in the tray / statusbar theme.
+     */
+    void statusbarThemeChanged();
+
 protected:
     explicit OSUtilsBase(QObject* parent = nullptr);
     virtual ~OSUtilsBase();

src/gui/osutils/macutils/AppKit.h

@@ -20,6 +20,7 @@
 #define KEEPASSX_APPKIT_H
 
 #include <QObject>
+#include <QColor>
 #include <unistd.h>
 
 class AppKit : public QObject
@@ -37,12 +38,14 @@ public:
     bool hideProcess(pid_t pid);
     bool isHidden(pid_t pid);
     bool isDarkMode();
+    bool isStatusBarDark();
     bool enableAccessibility();
     bool enableScreenRecording();
     void toggleForegroundApp(bool foreground);
 
 signals:
     void lockDatabases();
+    void interfaceThemeChanged();
 
 private:
     void* self;

src/gui/osutils/macutils/AppKitImpl.h

@@ -35,6 +35,7 @@
 - (bool) hideProcess:(pid_t) pid;
 - (bool) isHidden:(pid_t) pid;
 - (bool) isDarkMode;
+- (bool) isStatusBarDark;
 - (void) userSwitchHandler:(NSNotification*) notification;
 - (bool) enableAccessibility;
 - (bool) enableScreenRecording;

src/gui/osutils/macutils/AppKitImpl.mm

@@ -17,7 +17,11 @@
  */
 
 #import "AppKitImpl.h"
+#include "AppKit.h"
 
+#import <AppKit/NSStatusBar.h>
+#import <AppKit/NSStatusItem.h>
+#import <AppKit/NSStatusBarButton.h>
 #import <AppKit/NSWorkspace.h>
 #import <CoreVideo/CVPixelBuffer.h>
 
@@ -26,17 +30,31 @@
 - (id) initWithObject:(AppKit*)appkit
 {
     self = [super init];
+
     if (self) {
         m_appkit = appkit;
-        [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:static_cast<id>(self)
+        [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self
                                                            selector:@selector(didDeactivateApplicationObserver:)
                                                                name:NSWorkspaceDidDeactivateApplicationNotification
                                                              object:nil];
     
-        [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:static_cast<id>(self)
+        [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self
                                                             selector:@selector(userSwitchHandler:)
                                                                 name:NSWorkspaceSessionDidResignActiveNotification
                                                                 object:nil];
+
+        [[NSDistributedNotificationCenter defaultCenter] addObserver:self
+                                                            selector:@selector(interfaceThemeChanged:)
+                                                                name:@"AppleInterfaceThemeChangedNotification"
+                                                              object:nil];
+
+        // Unfortunately, there is no notification for a wallpaper change, which affects
+        // the status bar colour on macOS Big Sur, but we can at least subscribe to this.
+        [[NSDistributedNotificationCenter defaultCenter] addObserver:self
+                                                            selector:@selector(interfaceThemeChanged:)
+                                                                name:@"AppleColorPreferencesChangedNotification"
+                                                              object:nil];
+
     }
     return self;
 }
@@ -54,6 +72,18 @@
     }
 }
 
+//
+// Light / dark theme toggled
+//
+- (void) interfaceThemeChanged:(NSNotification*) notification
+{
+    Q_UNUSED(notification);
+    if (m_appkit) {
+        emit m_appkit->interfaceThemeChanged();
+    }
+}
+
+
 //
 // Get process id of frontmost application (-> keyboard input)
 //
@@ -108,6 +138,23 @@
              && NSOrderedSame == [style caseInsensitiveCompare:@"dark"] );
 }
 
+
+//
+// Get global menu bar theme state
+//
+- (bool) isStatusBarDark
+{
+    if (@available(macOS 10.17, *)) {
+        // This is an ugly hack, but I couldn't find a way to access QTrayIcon's NSStatusItem.
+        NSStatusItem* dummy = [[NSStatusBar systemStatusBar] statusItemWithLength:0];
+        NSString* appearance = [dummy.button.effectiveAppearance.name lowercaseString];
+        [[NSStatusBar systemStatusBar] removeStatusItem:dummy];
+        return [appearance containsString:@"dark"];
+    }
+
+    return [self isDarkMode];
+}
+
 //
 // Notification for user switch
 //
@@ -170,7 +217,8 @@
 // ------------------------- C++ Trampolines -------------------------
 //
 
-AppKit::AppKit(QObject* parent) : QObject(parent)
+AppKit::AppKit(QObject* parent)
+    : QObject(parent)
 {
     self = [[AppKitImpl alloc] initWithObject:this];
 }
@@ -178,6 +226,7 @@ AppKit::AppKit(QObject* parent) : QObject(parent)
 AppKit::~AppKit()
 {
     [[[NSWorkspace sharedWorkspace] notificationCenter] removeObserver:static_cast<id>(self)];
+    [[NSDistributedNotificationCenter defaultCenter] removeObserver:static_cast<id>(self)];
     [static_cast<id>(self) dealloc];
 }
 
@@ -216,6 +265,12 @@ bool AppKit::isDarkMode()
     return [static_cast<id>(self) isDarkMode];
 }
 
+bool AppKit::isStatusBarDark()
+{
+    return [static_cast<id>(self) isStatusBarDark];
+}
+
+
 bool AppKit::enableAccessibility()
 {
     return [static_cast<id>(self) enableAccessibility];

src/gui/osutils/macutils/MacUtils.cpp

@@ -22,6 +22,7 @@
 #include <QFile>
 #include <QSettings>
 #include <QStandardPaths>
+#include <QTimer>
 
 #include <ApplicationServices/ApplicationServices.h>
 #include <CoreGraphics/CGEventSource.h>
@@ -35,6 +36,14 @@ MacUtils::MacUtils(QObject* parent)
     , m_appkit(new AppKit())
 {
     connect(m_appkit.data(), SIGNAL(lockDatabases()), SIGNAL(lockDatabases()));
+    connect(m_appkit.data(), SIGNAL(interfaceThemeChanged()), SIGNAL(interfaceThemeChanged()));
+    connect(m_appkit.data(), &AppKit::interfaceThemeChanged, this, [this]() {
+        // Emit with delay, since isStatusBarDark() still returns the old value
+        // if we call it too fast after a theme change.
+        QTimer::singleShot(100, [this]() {
+            emit statusbarThemeChanged();
+        });
+    });
 }
 
 MacUtils::~MacUtils()
@@ -95,6 +104,11 @@ bool MacUtils::isDarkMode() const
     return m_appkit->isDarkMode();
 }
 
+bool MacUtils::isStatusBarDark() const
+{
+    return m_appkit->isStatusBarDark();
+}
+
 QString MacUtils::getLaunchAgentFilename() const
 {
     auto launchAgentDir =

src/gui/osutils/macutils/MacUtils.h

@@ -23,6 +23,7 @@
 #include "gui/osutils/OSUtilsBase.h"
 #include <Carbon/Carbon.h>
 
+#include <QColor>
 #include <QPointer>
 #include <QScopedPointer>
 #include <qwindowdefs.h>
@@ -35,6 +36,7 @@ public:
     static MacUtils* instance();
 
     bool isDarkMode() const override;
+    bool isStatusBarDark() const override;
     bool isLaunchAtStartupEnabled() const override;
     void setLaunchAtStartup(bool enable) override;
     bool isCapslockEnabled() override;

src/gui/osutils/nixutils/NixUtils.cpp

@@ -79,6 +79,12 @@ bool NixUtils::isDarkMode() const
     return qApp->style()->standardPalette().color(QPalette::Window).toHsl().lightness() < 110;
 }
 
+bool NixUtils::isStatusBarDark() const
+{
+    // TODO: implement
+    return isDarkMode();
+}
+
 QString NixUtils::getAutostartDesktopFilename(bool createDirs) const
 {
     QDir autostartDir;

src/gui/osutils/nixutils/NixUtils.h

@@ -30,6 +30,7 @@ public:
     static NixUtils* instance();
 
     bool isDarkMode() const override;
+    bool isStatusBarDark() const override;
     bool isLaunchAtStartupEnabled() const override;
     void setLaunchAtStartup(bool enable) override;
     bool isCapslockEnabled() override;

src/gui/osutils/winutils/WinUtils.cpp

@@ -87,6 +87,12 @@ bool WinUtils::isDarkMode() const
     return settings.value("AppsUseLightTheme", 1).toInt() == 0;
 }
 
+bool WinUtils::isStatusBarDark() const
+{
+    // TODO: implement
+    return isDarkMode();
+}
+
 bool WinUtils::isLaunchAtStartupEnabled() const
 {
     return QSettings(R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run)", QSettings::NativeFormat)

src/gui/osutils/winutils/WinUtils.h

@@ -35,6 +35,7 @@ public:
     static WinUtils* instance();
 
     bool isDarkMode() const override;
+    bool isStatusBarDark() const override;
     bool isLaunchAtStartupEnabled() const override;
     void setLaunchAtStartup(bool enable) override;
     bool isCapslockEnabled() override;

src/gui/styles/base/BaseStyle.cpp

@@ -52,6 +52,10 @@
 #include <QtMath>
 #include <qdrawutil.h>
 
+#ifdef Q_OS_MACOS
+#include <QOperatingSystemVersion>
+#endif
+
 #include <cmath>
 
 #include "gui/Icons.h"
@@ -288,10 +292,16 @@ namespace Phantom
 #ifdef Q_OS_MACOS
             QColor tabBarBase(const QPalette& pal)
             {
-                return hack_isLightPalette(pal) ? QRgb(0xD1D1D1) : QRgb(0x252525);
+                if (QOperatingSystemVersion::current() >= QOperatingSystemVersion::MacOSBigSur) {
+                    return hack_isLightPalette(pal) ? QRgb(0xD4D4D4) : QRgb(0x2A2A2A);
+                }
+                return hack_isLightPalette(pal) ? QRgb(0xDD1D1D1) : QRgb(0x252525);
             }
             QColor tabBarBaseInactive(const QPalette& pal)
             {
+                if (QOperatingSystemVersion::current() >= QOperatingSystemVersion::MacOSBigSur) {
+                    return hack_isLightPalette(pal) ? QRgb(0xF5F5F5) : QRgb(0x2D2D2D);
+                }
                 return hack_isLightPalette(pal) ? QRgb(0xF4F4F4) : QRgb(0x282828);
             }
 #endif
@@ -4571,27 +4581,6 @@ QStyle::SubControl BaseStyle::hitTestComplexControl(ComplexControl cc,
     return QCommonStyle::hitTestComplexControl(cc, opt, pt, w);
 }
 
-QPixmap BaseStyle::generatedIconPixmap(QIcon::Mode iconMode, const QPixmap& pixmap, const QStyleOption* opt) const
-{
-    // Default icon highlight is way too subtle
-    if (iconMode == QIcon::Selected) {
-        QImage img = pixmap.toImage().convertToFormat(QImage::Format_ARGB32_Premultiplied);
-        QPainter painter(&img);
-
-        painter.setCompositionMode(QPainter::CompositionMode_SourceAtop);
-
-        QColor color =
-            Phantom::DeriveColors::adjustLightness(opt->palette.color(QPalette::Normal, QPalette::Highlight), .25);
-        color.setAlphaF(0.25);
-        painter.fillRect(0, 0, img.width(), img.height(), color);
-
-        painter.end();
-
-        return QPixmap::fromImage(img);
-    }
-    return QCommonStyle::generatedIconPixmap(iconMode, pixmap, opt);
-}
-
 int BaseStyle::styleHint(StyleHint hint,
                          const QStyleOption* option,
                          const QWidget* widget,

src/gui/styles/base/BaseStyle.h

@@ -70,7 +70,6 @@ public:
                          const QStyleOptionComplex* opt,
                          SubControl sc,
                          const QWidget* widget) const override;
-    QPixmap generatedIconPixmap(QIcon::Mode iconMode, const QPixmap& pixmap, const QStyleOption* opt) const override;
     int styleHint(StyleHint hint,
                   const QStyleOption* option = nullptr,
                   const QWidget* widget = nullptr,

src/gui/styles/dark/DarkStyle.cpp

@@ -114,9 +114,9 @@ void DarkStyle::polish(QWidget* widget)
         auto palette = widget->palette();
 #if defined(Q_OS_MACOS)
         if (!osUtils->isDarkMode()) {
-            palette.setColor(QPalette::Active, QPalette::Window, QRgb(0x252525));
+            palette.setColor(QPalette::Active, QPalette::Window, QRgb(0x2A2A2A));
-            palette.setColor(QPalette::Inactive, QPalette::Window, QRgb(0x282828));
+            palette.setColor(QPalette::Inactive, QPalette::Window, QRgb(0x2D2D2D));
-            palette.setColor(QPalette::Disabled, QPalette::Window, QRgb(0x252525));
+            palette.setColor(QPalette::Disabled, QPalette::Window, QRgb(0x2D2D2D));
         }
 #elif defined(Q_OS_WIN)
         palette.setColor(QPalette::All, QPalette::Window, QRgb(0x2F2F30));

src/gui/styles/light/LightStyle.cpp

@@ -115,9 +115,9 @@ void LightStyle::polish(QWidget* widget)
         auto palette = widget->palette();
 #if defined(Q_OS_MACOS)
         if (osUtils->isDarkMode()) {
-            palette.setColor(QPalette::Active, QPalette::Window, QRgb(0xD1D1D1));
+            palette.setColor(QPalette::Active, QPalette::Window, QRgb(0xD4D4D4));
-            palette.setColor(QPalette::Inactive, QPalette::Window, QRgb(0xF4F4F4));
+            palette.setColor(QPalette::Inactive, QPalette::Window, QRgb(0xF5F5F5));
-            palette.setColor(QPalette::Disabled, QPalette::Window, QRgb(0xD1D1D1));
+            palette.setColor(QPalette::Disabled, QPalette::Window, QRgb(0xF5F5F5));
         }
 #elif defined(Q_OS_WIN)
         palette.setColor(QPalette::All, QPalette::Window, QRgb(0xFFFFFF));