diff --git a/src/core.h b/src/core.h
index af50a16..5c3d106 100644
--- a/src/core.h
+++ b/src/core.h
@@ -303,7 +303,7 @@ struct Node {
                 QJsonObject bm = v.toObject();
                 BitfieldMember m;
                 m.name = bm["name"].toString();
-                m.bitOffset = (uint8_t)bm["bitOffset"].toInt(0);
+                m.bitOffset = (uint8_t)qBound(0, bm["bitOffset"].toInt(0), 255);
                 m.bitWidth = (uint8_t)qBound(1, bm["bitWidth"].toInt(1), 64);
                 n.bitfieldMembers.append(m);
             }
diff --git a/src/editor.cpp b/src/editor.cpp
index 405cf6b..2988a40 100644
--- a/src/editor.cpp
+++ b/src/editor.cpp
@@ -966,12 +966,20 @@ void RcxEditor::applyDocument(const ComposeResult& result) {
     // Reset hint line - applySelectionOverlay will repaint indicators
     m_hintLine = -1;
 
-    // Restore hover state
+    // Restore hover state — but clear if the node was deleted
     m_hoveredNodeId = savedHoverId;
     m_hoveredLine = savedHoverLine;
     m_hoverInside = savedHoverInside;
     m_applyingDocument = false;
 
+    if (m_hoveredNodeId != 0 && !m_nodeLineIndex.contains(m_hoveredNodeId)) {
+        m_hoveredNodeId = 0;
+        m_hoveredLine = -1;
+        dismissHistoryPopup();
+        if (m_disasmPopup) m_disasmPopup->hide();
+        if (m_structPreviewPopup) m_structPreviewPopup->hide();
+    }
+
     // Re-apply hover markers (setText() clears all Scintilla markers).
     // Reset m_prevHoveredNodeId so the incremental logic re-adds markers.
     // applyHoverCursor() is NOT called here — it evaluates hitTest() against
diff --git a/src/processpicker.cpp b/src/processpicker.cpp
index 9aba24a..30946bf 100644
--- a/src/processpicker.cpp
+++ b/src/processpicker.cpp
@@ -55,6 +55,7 @@ void ProcessPicker::initUi()
     ui->processTable->setColumnWidth(0, 80);   // PID column
     ui->processTable->setColumnWidth(1, 200);  // Name column
     ui->processTable->horizontalHeader()->setStretchLastSection(true);
+    ui->processTable->setSortingEnabled(true);
     ui->processTable->setWordWrap(false);
     ui->processTable->setTextElideMode(Qt::ElideLeft);
     ui->processTable->setShowGrid(false);
@@ -329,6 +330,9 @@ void ProcessPicker::populateTable(const QList<ProcessInfo>& processes)
         pathItem->setToolTip(proc.path);  // Show full path on hover
         ui->processTable->setItem(i, 2, pathItem);
     }
+
+    // Default sort: highest PID first (most recently launched processes on top)
+    ui->processTable->sortItems(0, Qt::DescendingOrder);
 }
 
 void ProcessPicker::filterProcesses(const QString& text)
diff --git a/src/scanner.cpp b/src/scanner.cpp
index 7ceb25c..950e0c3 100644
--- a/src/scanner.cpp
+++ b/src/scanner.cpp
@@ -533,6 +533,7 @@ QVector<ScanResult> ScanEngine::runScan(std::shared_ptr<Provider> prov,
             regEnd   = qMin(regEnd, req.endAddress);
         }
         uint64_t regSize = regEnd - regStart;
+        if (regSize == 0) continue;
 
         if ((uint64_t)patternLen > regSize) {
             scannedBytes += regSize;
diff --git a/src/themes/themeeditor.cpp b/src/themes/themeeditor.cpp
index 1c33338..396a7d2 100644
--- a/src/themes/themeeditor.cpp
+++ b/src/themes/themeeditor.cpp
@@ -64,7 +64,8 @@ ThemeEditor::ThemeEditor(int themeIndex, QWidget* parent)
 
     // ── File info ──
     m_fileInfoLabel = new QLabel;
-    m_fileInfoLabel->setStyleSheet(QStringLiteral("color: #666; font-size: 10px; padding: 0 0 4px 0;"));
+    m_fileInfoLabel->setStyleSheet(QStringLiteral("color: %1; font-size: 10px; padding: 0 0 4px 0;")
+        .arg(tm.current().textDim.name()));
     QString path = tm.themeFilePath(themeIndex);
     m_fileInfoLabel->setText(path.isEmpty()
         ? QStringLiteral("Built-in theme (edits save as user copy)")
@@ -109,7 +110,8 @@ ThemeEditor::ThemeEditor(int themeIndex, QWidget* parent)
 
         auto* hexLbl = new QLabel;
         hexLbl->setFixedWidth(60);
-        hexLbl->setStyleSheet(QStringLiteral("color: #aaa; font-size: 10px;"));
+        hexLbl->setStyleSheet(QStringLiteral("color: %1; font-size: 10px;")
+            .arg(tm.current().textMuted.name()));
         row->addWidget(hexLbl);
 
         row->addStretch();
diff --git a/src/titlebar.cpp b/src/titlebar.cpp
index 3fe4dfb..edd3b93 100644
--- a/src/titlebar.cpp
+++ b/src/titlebar.cpp
@@ -95,10 +95,10 @@ void TitleBarWidget::applyTheme(const Theme& theme) {
     m_btnMin->setStyleSheet(btnStyle);
     m_btnMax->setStyleSheet(btnStyle);
 
-    // Close button: red hover
+    // Close button: themed red hover
     m_btnClose->setStyleSheet(QStringLiteral(
         "QToolButton { background: transparent; border: none; }"
-        "QToolButton:hover { background: #c42b1c; }"));
+        "QToolButton:hover { background: %1; }").arg(theme.indHeatHot.name()));
 
     update();
 }