fix: move DockTabButtons to header for MSVC automoc compatibility

automoc doesn't generate main.moc on MSVC, breaking the build.
Move DockTabButtons (which needs Q_OBJECT) to its own header so
automoc handles it as moc_dock_tab_buttons.cpp instead.

src/dock_tab_buttons.h

@@ -0,0 +1,65 @@
+#pragma once
+
+#include <QWidget>
+#include <QToolButton>
+#include <QHBoxLayout>
+#include <QIcon>
+
+// Dock tab button widget (pin + close)
+// Placed on the right side of each dock tab via QTabBar::setTabButton.
+class DockTabButtons : public QWidget {
+    Q_OBJECT
+public:
+    QToolButton* pinBtn;
+    QToolButton* closeBtn;
+    bool pinned = false;
+
+    explicit DockTabButtons(QWidget* parent = nullptr) : QWidget(parent) {
+        auto* hl = new QHBoxLayout(this);
+        hl->setContentsMargins(0, 0, 0, 0);
+        hl->setSpacing(0);
+
+        pinBtn = new QToolButton(this);
+        pinBtn->setAutoRaise(true);
+        pinBtn->setCursor(Qt::PointingHandCursor);
+        pinBtn->setFixedSize(16, 16);
+        pinBtn->setToolTip("Pin tab");
+        updatePinIcon();
+        hl->addWidget(pinBtn);
+
+        closeBtn = new QToolButton(this);
+        closeBtn->setAutoRaise(true);
+        closeBtn->setCursor(Qt::PointingHandCursor);
+        closeBtn->setFixedSize(16, 16);
+        closeBtn->setToolTip("Close tab");
+        closeBtn->setIcon(QIcon(":/vsicons/close.svg"));
+        closeBtn->setIconSize(QSize(12, 12));
+        hl->addWidget(closeBtn);
+
+        connect(pinBtn, &QToolButton::clicked, this, [this]() {
+            pinned = !pinned;
+            updatePinIcon();
+            emit pinToggled(pinned);
+        });
+    }
+
+    void applyTheme(const QColor& hover) {
+        QString style = QStringLiteral(
+            "QToolButton { border: none; padding: 1px; border-radius: 0px; }"
+            "QToolButton:hover { background: %1; }").arg(hover.name());
+        pinBtn->setStyleSheet(style);
+        closeBtn->setStyleSheet(style);
+    }
+
+    void setPinned(bool p) { pinned = p; updatePinIcon(); emit pinToggled(pinned); }
+
+signals:
+    void pinToggled(bool pinned);
+
+private:
+    void updatePinIcon() {
+        pinBtn->setIcon(QIcon(pinned ? ":/vsicons/pinned.svg" : ":/vsicons/pin.svg"));
+        pinBtn->setIconSize(QSize(12, 12));
+        pinBtn->setToolTip(pinned ? "Unpin tab" : "Pin tab");
+    }
+};

src/main.cpp

@@ -480,64 +480,7 @@ public:
     }
 };
 
-// ── Dock tab button widget (pin + close) ──
-// Placed on the right side of each dock tab via QTabBar::setTabButton.
-class DockTabButtons : public QWidget {
-    Q_OBJECT
-public:
-    QToolButton* pinBtn;
-    QToolButton* closeBtn;
-    bool pinned = false;
-
-    explicit DockTabButtons(QWidget* parent = nullptr) : QWidget(parent) {
-        auto* hl = new QHBoxLayout(this);
-        hl->setContentsMargins(0, 0, 0, 0);
-        hl->setSpacing(0);
-
-        pinBtn = new QToolButton(this);
-        pinBtn->setAutoRaise(true);
-        pinBtn->setCursor(Qt::PointingHandCursor);
-        pinBtn->setFixedSize(16, 16);
-        pinBtn->setToolTip("Pin tab");
-        updatePinIcon();
-        hl->addWidget(pinBtn);
-
-        closeBtn = new QToolButton(this);
-        closeBtn->setAutoRaise(true);
-        closeBtn->setCursor(Qt::PointingHandCursor);
-        closeBtn->setFixedSize(16, 16);
-        closeBtn->setToolTip("Close tab");
-        closeBtn->setIcon(QIcon(":/vsicons/close.svg"));
-        closeBtn->setIconSize(QSize(12, 12));
-        hl->addWidget(closeBtn);
-
-        connect(pinBtn, &QToolButton::clicked, this, [this]() {
-            pinned = !pinned;
-            updatePinIcon();
-            emit pinToggled(pinned);
-        });
-    }
-
-    void applyTheme(const QColor& hover) {
-        QString style = QStringLiteral(
-            "QToolButton { border: none; padding: 1px; border-radius: 0px; }"
-            "QToolButton:hover { background: %1; }").arg(hover.name());
-        pinBtn->setStyleSheet(style);
-        closeBtn->setStyleSheet(style);
-    }
-
-    void setPinned(bool p) { pinned = p; updatePinIcon(); emit pinToggled(pinned); }
-
-signals:
-    void pinToggled(bool pinned);
-
-private:
-    void updatePinIcon() {
-        pinBtn->setIcon(QIcon(pinned ? ":/vsicons/pinned.svg" : ":/vsicons/pin.svg"));
-        pinBtn->setIconSize(QSize(12, 12));
-        pinBtn->setToolTip(pinned ? "Unpin tab" : "Pin tab");
-    }
-};
+#include "dock_tab_buttons.h"
 
 static void applyGlobalTheme(const rcx::Theme& theme) {
     QPalette pal;
@@ -4049,5 +3992,3 @@ int main(int argc, char* argv[]) {
     return app.exec();
 }
 
-// DockTabButtons has Q_OBJECT in main.cpp — need the moc include
-#include "main.moc"

src/titlebar.cpp

@@ -1,5 +1,6 @@
 #include "titlebar.h"
 #include "themes/thememanager.h"
+#include <QMenu>
 #include <QMouseEvent>
 #include <QPainter>
 #include <QStyle>
@@ -76,15 +77,35 @@ void TitleBarWidget::applyTheme(const Theme& theme) {
         QStringLiteral("QLabel { color: %1; font-size: 12px; font-weight: bold; }")
             .arg(theme.text.name()));
 
-    // Menu bar palette — hover/bg handled by MenuBarStyle QProxyStyle.
-    // Set Window + Button to background so Fusion never paints a foreign color.
+    // Menu bar palette — all roles used by MenuBarStyle, so live theme
+    // switches don't rely on app-palette inheritance (which can stall
+    // once setPalette has been called on a widget).
     {
         QPalette mbPal = m_menuBar->palette();
         mbPal.setColor(QPalette::Window, theme.background);
         mbPal.setColor(QPalette::Button, theme.background);
         mbPal.setColor(QPalette::ButtonText, theme.text);
+        mbPal.setColor(QPalette::Text, theme.text);
+        mbPal.setColor(QPalette::Highlight, theme.selected);
+        mbPal.setColor(QPalette::Link, theme.indHoverSpan);
+        mbPal.setColor(QPalette::AlternateBase, theme.surface);
+        mbPal.setColor(QPalette::Dark, theme.border);
+        mbPal.setColor(QPalette::Mid, theme.hover);
         m_menuBar->setPalette(mbPal);
         m_menuBar->setAutoFillBackground(false);
+
+        // Propagate to existing QMenu children so dropdown popups update too
+        for (auto* menu : m_menuBar->findChildren<QMenu*>()) {
+            QPalette mp = menu->palette();
+            mp.setColor(QPalette::Window, theme.background);
+            mp.setColor(QPalette::WindowText, theme.text);
+            mp.setColor(QPalette::Text, theme.text);
+            mp.setColor(QPalette::Highlight, theme.selected);
+            mp.setColor(QPalette::Link, theme.indHoverSpan);
+            mp.setColor(QPalette::AlternateBase, theme.surface);
+            mp.setColor(QPalette::Dark, theme.border);
+            menu->setPalette(mp);
+        }
     }
 
     // Chrome buttons