diff --git a/.github/workflows/ci-macos.yml b/.github/workflows/ci-macos.yml
index ed9525f6..cecca1c5 100644
--- a/.github/workflows/ci-macos.yml
+++ b/.github/workflows/ci-macos.yml
@@ -13,11 +13,23 @@ env:
     VNOTE_VER: 3.14.0
 
 jobs:
-  build-linux:
+  build:
     name: Build On MacOS
     runs-on: macos-latest
     timeout-minutes: 120
 
+    strategy:
+      matrix:
+        config:
+          - {
+            name: "Build Qt 5.12",
+            qt: 5.12.12
+          }
+          - {
+            name: "Build Qt 5.15",
+            qt: 5.15.2
+          }
+
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE.
       - uses: actions/checkout@v2
@@ -44,12 +56,12 @@ jobs:
         uses: actions/cache@v1  # not v2!
         with:
           path: ../Qt
-          key: ${{ runner.os }}-QtCache-5.12-2
+          key: ${{ runner.os }}-QtCache-${{ matrix.config.qt }}
 
       - name: Install Qt
-        uses: jurplel/install-qt-action@v2
+        uses: jurplel/install-qt-action@v3
         with:
-          version: 5.12.12
+          version: ${{ matrix.config.qt }}
           target: desktop
           modules: qtwebengine
           cached: ${{ steps.cache-qt.outputs.cache-hit }}
@@ -125,13 +137,13 @@ jobs:
           popd
           sleep 1m
           hdiutil create -srcfolder ./distrib/vnote -format UDBZ vnote-mac-x64_v${{env.VNOTE_VER}}.dmg
-          cp vnote-mac-x64_v${{env.VNOTE_VER}}.dmg vnote-mac-x64.dmg
+          cp vnote-mac-x64_v${{env.VNOTE_VER}}.dmg vnote-mac-x64-qt${{matrix.config.qt}}.dmg
         working-directory: ${{runner.workspace}}/build
 
       - name: Archive Artifacts
         uses: actions/upload-artifact@v2
         with:
-          name: vnote-mac-x64_v${{env.VNOTE_VER}}
+          name: vnote-mac-x64-qt${{matrix.config.qt}}_v${{env.VNOTE_VER}}
           path: ${{runner.workspace}}/build/vnote-mac-x64_v${{env.VNOTE_VER}}.dmg
 
       - name: Update Tag
@@ -145,6 +157,6 @@ jobs:
         uses: johnwbyrd/update-release@v1.0.0
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          files: ${{runner.workspace}}/build/vnote-mac-x64.dmg
+          files: ${{runner.workspace}}/build/vnote-mac-x64-qt${{matrix.config.qt}}.dmg
           release: Continuous Build
           tag: continuous-build
diff --git a/.github/workflows/ci-win.yml b/.github/workflows/ci-win.yml
index 7a241266..3f96748c 100644
--- a/.github/workflows/ci-win.yml
+++ b/.github/workflows/ci-win.yml
@@ -39,6 +39,12 @@ jobs:
             platform: x64,
             qt: 5.15.2
           }
+          - {
+            name: "Build On Win32 Qt 5.15",
+            arch: win32_msvc2019,
+            platform: x86,
+            qt: 5.15.2
+          }
           - {
             name: "Build On Win64 Qt 5.15.5",
             arch: win64_msvc2019_64,
@@ -80,7 +86,7 @@ jobs:
       - name: Install Qt Private Build
         if: ${{ matrix.config.qt == '5.15.x' }}
         shell: cmd
-        # https://build-qt.fsu0413.me/5.15-series/5.15.5-for-windows/
+        # https://build-qt.fsu0413.me/5.15-series
         run: |
           C:\msys64\usr\bin\wget.exe -q https://mirrors.gigenet.com/OSDN//users/38/38692/Qt5.15.5-Windows-x86_64-VS2019-16.11.16-20220627.7z
           7z x Qt5.15*.7z
diff --git a/src/widgets/notebooknodeexplorer.cpp b/src/widgets/notebooknodeexplorer.cpp
index 151f2590..4cb7a8c3 100644
--- a/src/widgets/notebooknodeexplorer.cpp
+++ b/src/widgets/notebooknodeexplorer.cpp
@@ -2135,7 +2135,7 @@ void NotebookNodeExplorer::addOpenWithMenu(QMenu *p_menu, bool p_master)
     {
         auto defaultAct = subMenu->addAction(tr("System Default Program"));
         connect(defaultAct, &QAction::triggered,
-                this, [this, defaultAct, p_master]() {
+                this, [this, p_master]() {
                     openSelectedNodesWithProgram(QString(), p_master);
                 });
         const auto &coreConfig = ConfigMgr::getInst().getCoreConfig();
diff --git a/src/widgets/viewwindow.cpp b/src/widgets/viewwindow.cpp
index e2c8506a..ddfd6e9f 100644
--- a/src/widgets/viewwindow.cpp
+++ b/src/widgets/viewwindow.cpp
@@ -41,17 +41,11 @@
 
 using namespace vnotex;
 
-QIcon ViewWindow::s_savedIcon;
-
-QIcon ViewWindow::s_modifiedIcon;
-
 ViewWindow::ViewWindow(QWidget *p_parent)
     : QFrame(p_parent)
 {
     setupUI();
 
-    initIcons();
-
     setupShortcuts();
 
     // Need to use this global-wise way, especially for the WebView.
@@ -102,20 +96,6 @@ void ViewWindow::setupUI()
     m_mainLayout->addLayout(m_bottomLayout, 0);
 }
 
-void ViewWindow::initIcons()
-{
-    if (!s_savedIcon.isNull()) {
-        return;
-    }
-
-    const auto &themeMgr = VNoteX::getInst().getThemeMgr();
-    const QString savedIconName("buffer.svg");
-    const QString unsavedIconFg("base#icon#warning#fg");
-    s_savedIcon = IconUtils::fetchIcon(themeMgr.getIconFile(savedIconName));
-    s_modifiedIcon = IconUtils::fetchIcon(themeMgr.getIconFile(savedIconName),
-                                          themeMgr.paletteColor(unsavedIconFg));
-}
-
 Buffer *ViewWindow::getBuffer() const
 {
     return m_buffer;
@@ -194,11 +174,8 @@ void ViewWindow::detachFromBuffer(bool p_quiet)
 
 QIcon ViewWindow::getIcon() const
 {
-    if (m_buffer) {
-        return m_buffer->isModified() ? s_modifiedIcon : s_savedIcon;
-    } else {
-        return s_savedIcon;
-    }
+    // Unnecessary to provide an icon for the tab.
+    return QIcon();
 }
 
 QString ViewWindow::getName() const
diff --git a/src/widgets/viewwindow.h b/src/widgets/viewwindow.h
index da8e1f3d..a2ac0ea8 100644
--- a/src/widgets/viewwindow.h
+++ b/src/widgets/viewwindow.h
@@ -283,8 +283,6 @@ namespace vnotex
 
         void setupUI();
 
-        void initIcons();
-
         void setupShortcuts();
 
         void discardChangesAndRead();
@@ -378,9 +376,6 @@ namespace vnotex
         QActionGroup *m_imageHostActionGroup = nullptr;
 
         bool m_statusWidgetInBottomLayout = false;
-
-        static QIcon s_savedIcon;
-        static QIcon s_modifiedIcon;
     };
 } // ns vnotex