diff --git a/libs/vtextedit b/libs/vtextedit
index 32678afe..c3889fc6 160000
--- a/libs/vtextedit
+++ b/libs/vtextedit
@@ -1 +1 @@
-Subproject commit 32678afe91f4ad15acb4f4d24d92e1fa61bb1df7
+Subproject commit c3889fc666816ae64d5a71b4c7bcd8fccb15b45f
diff --git a/src/core/editorconfig.h b/src/core/editorconfig.h
index 5feeeda7..32138fe8 100644
--- a/src/core/editorconfig.h
+++ b/src/core/editorconfig.h
@@ -93,6 +93,8 @@ namespace vnotex
         void setSpellCheckDefaultDictionary(const QString &p_dict);
 
     private:
+        friend class MainConfig;
+
         void loadCore(const QJsonObject &p_app, const QJsonObject &p_user);
 
         QJsonObject saveCore() const;
diff --git a/src/core/mainconfig.cpp b/src/core/mainconfig.cpp
index 63e3db21..0c88e1bf 100644
--- a/src/core/mainconfig.cpp
+++ b/src/core/mainconfig.cpp
@@ -123,4 +123,8 @@ void MainConfig::doVersionSpecificOverride()
     m_coreConfig->m_shortcuts[CoreConfig::Shortcut::LocationListDock] = "Ctrl+G, L";
     m_coreConfig->m_shortcuts[CoreConfig::Shortcut::NewWorkspace] = "Ctrl+G, M";
     m_coreConfig->writeToSettings();
+
+    m_editorConfig->m_shortcuts[EditorConfig::Shortcut::TypeMath] = "Ctrl+.";
+    m_editorConfig->m_shortcuts[EditorConfig::Shortcut::TypeMathBlock] = "Ctrl+G, .";
+    m_editorConfig->writeToSettings();
 }
diff --git a/src/core/markdowneditorconfig.cpp b/src/core/markdowneditorconfig.cpp
index 809a85c4..896dd952 100644
--- a/src/core/markdowneditorconfig.cpp
+++ b/src/core/markdowneditorconfig.cpp
@@ -62,6 +62,8 @@ void MarkdownEditorConfig::init(const QJsonObject &p_app, const QJsonObject &p_u
     m_smartTableInterval = READINT(QStringLiteral("smart_table_interval"));
 
     m_spellCheckEnabled = READBOOL(QStringLiteral("spell_check"));
+
+    m_editorOverriddenFontFamily = READSTR(QStringLiteral("editor_overridden_font_family"));
 }
 
 QJsonObject MarkdownEditorConfig::toJson() const
@@ -94,6 +96,7 @@ QJsonObject MarkdownEditorConfig::toJson() const
     obj[QStringLiteral("smart_table")] = m_smartTableEnabled;
     obj[QStringLiteral("smart_table_interval")] = m_smartTableInterval;
     obj[QStringLiteral("spell_check")] = m_spellCheckEnabled;
+    obj[QStringLiteral("editor_overridden_font_family")] = m_editorOverriddenFontFamily;
     return obj;
 }
 
@@ -430,3 +433,13 @@ void MarkdownEditorConfig::setSpellCheckEnabled(bool p_enabled)
 {
     updateConfig(m_spellCheckEnabled, p_enabled, this);
 }
+
+const QString &MarkdownEditorConfig::getEditorOverriddenFontFamily() const
+{
+    return m_editorOverriddenFontFamily;
+}
+
+void MarkdownEditorConfig::setEditorOverriddenFontFamily(const QString &p_family)
+{
+    updateConfig(m_editorOverriddenFontFamily, p_family, this);
+}
diff --git a/src/core/markdowneditorconfig.h b/src/core/markdowneditorconfig.h
index 2859ee4a..139ce9bc 100644
--- a/src/core/markdowneditorconfig.h
+++ b/src/core/markdowneditorconfig.h
@@ -112,6 +112,9 @@ namespace vnotex
         bool isSpellCheckEnabled() const;
         void setSpellCheckEnabled(bool p_enabled);
 
+        const QString &getEditorOverriddenFontFamily() const;
+        void setEditorOverriddenFontFamily(const QString &p_family);
+
     private:
         QString sectionNumberModeToString(SectionNumberMode p_mode) const;
         SectionNumberMode stringToSectionNumberMode(const QString &p_str) const;
@@ -197,6 +200,9 @@ namespace vnotex
 
         // Override the config in TextEditorConfig.
         bool m_spellCheckEnabled = true;
+
+        // Font family to override the editor's theme.
+        QString m_editorOverriddenFontFamily;
     };
 }
 
diff --git a/src/data/core/vnotex.json b/src/data/core/vnotex.json
index 24f8175c..12b94637 100644
--- a/src/data/core/vnotex.json
+++ b/src/data/core/vnotex.json
@@ -83,8 +83,8 @@
                 "TypeOrderedList" : "Ctrl+9",
                 "TypeCode" : "Ctrl+;",
                 "TypeCodeBlock" : "Ctrl+'",
-                "TypeMath" : "Ctrl+,",
-                "TypeMathBlock" : "Ctrl+.",
+                "TypeMath" : "Ctrl+.",
+                "TypeMathBlock" : "Ctrl+G, .",
                 "TypeTable" : "Ctrl+/",
                 "TypeMark" : "Ctrl+G, M",
                 "Outline" : "Ctrl+G, O",
@@ -114,7 +114,7 @@
             "spell_check": false
         },
         "markdown_editor" : {
-            "override_viewer_resource" : true,
+            "override_viewer_resource" : false,
             "viewer_resource" : {
                 "template" : "web/markdown-viewer-template.html",
                 "resources" : [
@@ -318,7 +318,8 @@
             "smart_table" : true,
             "//comment" : "Time interval (milliseconds) to do smart table formatting",
             "smart_table_interval" : 1000,
-            "spell_check" : true
+            "spell_check" : true,
+            "editor_overridden_font_family" : ""
         }
     },
     "widget" : {
diff --git a/src/widgets/dialogs/settings/markdowneditorpage.cpp b/src/widgets/dialogs/settings/markdowneditorpage.cpp
index 4c8bfb2f..93ebef65 100644
--- a/src/widgets/dialogs/settings/markdowneditorpage.cpp
+++ b/src/widgets/dialogs/settings/markdowneditorpage.cpp
@@ -10,6 +10,8 @@
 #include <QHBoxLayout>
 #include <QPushButton>
 #include <QFileDialog>
+#include <QFontComboBox>
+#include <QFont>
 
 #include <widgets/widgetsfactory.h>
 #include <core/editorconfig.h>
@@ -96,6 +98,16 @@ void MarkdownEditorPage::loadInternal()
     }
 
     m_graphvizFileInput->setText(markdownConfig.getGraphvizExe());
+
+    {
+        const auto &fontFamily = markdownConfig.getEditorOverriddenFontFamily();
+        m_editorOverriddenFontFamilyCheckBox->setChecked(!fontFamily.isEmpty());
+        if (!fontFamily.isEmpty()) {
+            QFont font;
+            font.setFamily(fontFamily);
+            m_editorOverriddenFontFamilyComboBox->setCurrentFont(font);
+        }
+    }
 }
 
 void MarkdownEditorPage::saveInternal()
@@ -146,6 +158,11 @@ void MarkdownEditorPage::saveInternal()
 
     markdownConfig.setGraphvizExe(m_graphvizFileInput->text());
 
+    {
+        bool checked = m_editorOverriddenFontFamilyCheckBox->isChecked();
+        markdownConfig.setEditorOverriddenFontFamily(checked ? m_editorOverriddenFontFamilyComboBox->currentFont().family() : QString());
+    }
+
     EditorPage::notifyEditorConfigChange();
 }
 
@@ -281,6 +298,33 @@ QGroupBox *MarkdownEditorPage::setupEditGroup()
                 this, &MarkdownEditorPage::pageIsChanged);
     }
 
+    {
+        auto fontLayout = new QHBoxLayout();
+        fontLayout->setContentsMargins(0, 0, 0, 0);
+
+        const QString label(tr("Override font"));
+        m_editorOverriddenFontFamilyCheckBox = WidgetsFactory::createCheckBox(label, box);
+        m_editorOverriddenFontFamilyCheckBox->setToolTip(tr("Override editor font family of theme"));
+        fontLayout->addWidget(m_editorOverriddenFontFamilyCheckBox);
+        addSearchItem(label, m_editorOverriddenFontFamilyCheckBox->toolTip(), m_editorOverriddenFontFamilyCheckBox);
+
+        m_editorOverriddenFontFamilyComboBox = new QFontComboBox(box);
+        m_editorOverriddenFontFamilyComboBox->setEnabled(false);
+        fontLayout->addWidget(m_editorOverriddenFontFamilyComboBox);
+        connect(m_editorOverriddenFontFamilyComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged),
+                this, &MarkdownEditorPage::pageIsChanged);
+
+        fontLayout->addStretch();
+
+        connect(m_editorOverriddenFontFamilyCheckBox, &QCheckBox::stateChanged,
+                this, [this](int state) {
+                    m_editorOverriddenFontFamilyComboBox->setEnabled(state == Qt::Checked);
+                    emit pageIsChanged();
+                });
+
+        layout->addRow(fontLayout);
+    }
+
     return box;
 }
 
@@ -291,6 +335,7 @@ QGroupBox *MarkdownEditorPage::setupGeneralGroup()
 
     {
         auto sectionLayout = new QHBoxLayout();
+        sectionLayout->setContentsMargins(0, 0, 0, 0);
 
         m_sectionNumberComboBox = WidgetsFactory::createComboBox(box);
         m_sectionNumberComboBox->setToolTip(tr("Section number mode"));
@@ -305,6 +350,7 @@ QGroupBox *MarkdownEditorPage::setupGeneralGroup()
         m_sectionNumberBaseLevelSpinBox->setToolTip(tr("Base level to start section numbering in edit mode"));
         m_sectionNumberBaseLevelSpinBox->setRange(1, 6);
         m_sectionNumberBaseLevelSpinBox->setSingleStep(1);
+        m_sectionNumberBaseLevelSpinBox->setEnabled(false);
         sectionLayout->addWidget(m_sectionNumberBaseLevelSpinBox);
         connect(m_sectionNumberBaseLevelSpinBox, QOverload<int>::of(&QSpinBox::valueChanged),
                 this, &MarkdownEditorPage::pageIsChanged);
@@ -313,6 +359,7 @@ QGroupBox *MarkdownEditorPage::setupGeneralGroup()
         m_sectionNumberStyleComboBox->setToolTip(tr("Section number style"));
         m_sectionNumberStyleComboBox->addItem(tr("1.1."), (int)MarkdownEditorConfig::SectionNumberStyle::DigDotDigDot);
         m_sectionNumberStyleComboBox->addItem(tr("1.1"), (int)MarkdownEditorConfig::SectionNumberStyle::DigDotDig);
+        m_sectionNumberStyleComboBox->setEnabled(false);
         sectionLayout->addWidget(m_sectionNumberStyleComboBox);
         connect(m_sectionNumberStyleComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged),
                 this, &MarkdownEditorPage::pageIsChanged);
@@ -344,6 +391,7 @@ QGroupBox *MarkdownEditorPage::setupGeneralGroup()
 
     {
         auto jarLayout = new QHBoxLayout();
+        jarLayout->setContentsMargins(0, 0, 0, 0);
 
         m_plantUmlJarFileInput = new LocationInputWithBrowseButton(box);
         m_plantUmlJarFileInput->setToolTip(tr("Local JAR file to render PlantUML graphs"));
@@ -403,6 +451,7 @@ QGroupBox *MarkdownEditorPage::setupGeneralGroup()
 
     {
         auto fileLayout = new QHBoxLayout();
+        fileLayout->setContentsMargins(0, 0, 0, 0);
 
         m_graphvizFileInput = new LocationInputWithBrowseButton(box);
         m_graphvizFileInput->setToolTip(tr("Local executable file to render Graphviz graphs"));
diff --git a/src/widgets/dialogs/settings/markdowneditorpage.h b/src/widgets/dialogs/settings/markdowneditorpage.h
index 9e1f93cb..6fabb0e3 100644
--- a/src/widgets/dialogs/settings/markdowneditorpage.h
+++ b/src/widgets/dialogs/settings/markdowneditorpage.h
@@ -8,6 +8,7 @@ class QGroupBox;
 class QDoubleSpinBox;
 class QSpinBox;
 class QComboBox;
+class QFontComboBox;
 
 namespace vnotex
 {
@@ -70,6 +71,10 @@ namespace vnotex
         QComboBox *m_graphvizModeComboBox = nullptr;
 
         LocationInputWithBrowseButton *m_graphvizFileInput = nullptr;
+
+        QCheckBox *m_editorOverriddenFontFamilyCheckBox = nullptr;
+
+        QFontComboBox *m_editorOverriddenFontFamilyComboBox = nullptr;
     };
 }
 
diff --git a/src/widgets/editors/graphvizhelper.cpp b/src/widgets/editors/graphvizhelper.cpp
index 28149997..d0046231 100644
--- a/src/widgets/editors/graphvizhelper.cpp
+++ b/src/widgets/editors/graphvizhelper.cpp
@@ -34,8 +34,10 @@ void GraphvizHelper::prepareProgramAndArgs(const QString &p_graphvizFile,
                                            QString &p_program,
                                            QStringList &p_args)
 {
-    p_program = p_graphvizFile.isEmpty() ? QStringLiteral("dot") : p_graphvizFile;
+    p_program.clear();
     p_args.clear();
+
+    p_program = p_graphvizFile.isEmpty() ? QStringLiteral("dot") : p_graphvizFile;
 }
 
 QPair<bool, QString> GraphvizHelper::testGraphviz(const QString &p_graphvizFile)
diff --git a/src/widgets/editors/plantumlhelper.cpp b/src/widgets/editors/plantumlhelper.cpp
index eec580c4..f891694e 100644
--- a/src/widgets/editors/plantumlhelper.cpp
+++ b/src/widgets/editors/plantumlhelper.cpp
@@ -45,6 +45,9 @@ void PlantUmlHelper::prepareProgramAndArgs(const QString &p_plantUmlJarFile,
                                            QString &p_program,
                                            QStringList &p_args)
 {
+    p_program.clear();
+    p_args.clear();
+
 #if defined(Q_OS_WIN)
     p_program = "java";
 #else
diff --git a/src/widgets/markdownviewwindow.cpp b/src/widgets/markdownviewwindow.cpp
index 44c87642..8ccc24f0 100644
--- a/src/widgets/markdownviewwindow.cpp
+++ b/src/widgets/markdownviewwindow.cpp
@@ -784,10 +784,14 @@ void MarkdownViewWindow::setupOutlineProvider()
 QSharedPointer<vte::MarkdownEditorConfig> MarkdownViewWindow::createMarkdownEditorConfig(const MarkdownEditorConfig &p_config)
 {
     const auto &themeMgr = VNoteX::getInst().getThemeMgr();
+
     auto textEditorConfig = TextViewWindowHelper::createTextEditorConfig(p_config.getTextEditorConfig(),
                                                                          themeMgr.getFile(Theme::File::MarkdownEditorStyle),
                                                                          themeMgr.getMarkdownEditorHighlightTheme());
+
     auto editorConfig = QSharedPointer<vte::MarkdownEditorConfig>::create(textEditorConfig);
+    editorConfig->overrideTextFontFamily(p_config.getEditorOverriddenFontFamily());
+
     editorConfig->m_constrainInPlacePreviewWidthEnabled = p_config.getConstrainInPlacePreviewWidthEnabled();
     return editorConfig;
 }