diff --git a/WallReel/Core/Config/data.hpp b/WallReel/Core/Config/data.hpp
index 31f59c0..b93d26d 100644
--- a/WallReel/Core/Config/data.hpp
+++ b/WallReel/Core/Config/data.hpp
@@ -19,11 +19,12 @@
 // wallpaper.dirs[].recursive   boolean false   Whether to search the directory recursively.
 // wallpaper.excludes           array   []      Exclude patterns (regex)
 //
-// palettes                     array   []
-// palettes[].name              string  ""      Name of the palette
-// palettes[].colors            array   []      List of colors in the palette
-// palettes[].colors[].name     string  ""      Name of the color
-// palettes[].colors[].value    string  ""      Color value in hex format, e.g. "#ff0000" for red
+// theme.defaultPalette                 string  ""      Name of the default palette to use
+// theme.palettes                       array   []
+// theme.palettes[].name                string  ""      Name of the palette
+// theme.palettes[].colors              array   []      List of colors in the palette
+// theme.palettes[].colors[].name       string  ""      Name of the color
+// theme.palettes[].colors[].value      string  ""      Color value in hex format, e.g. "#ff0000" for red
 //
 // action.previewDebounceTime   number  300     Debounce time for preview action in milliseconds
 // action.printSelected         boolean true    Whether to print the selected wallpaper path to stdout on confirm
@@ -73,7 +74,7 @@ struct WallpaperConfigItems {
     QList<QRegularExpression> excludes;
 };
 
-struct PaletteConfigItems {
+struct ThemeConfigItems {
     struct PaletteColorConfigItem {
         QString name;
         QColor value;
@@ -85,6 +86,7 @@ struct PaletteConfigItems {
     };
 
     QList<PaletteConfigItem> palettes;
+    QString defaultPalette;
 };
 
 struct ActionConfigItems {
diff --git a/WallReel/Core/Config/manager.cpp b/WallReel/Core/Config/manager.cpp
index df5b57c..42583b9 100644
--- a/WallReel/Core/Config/manager.cpp
+++ b/WallReel/Core/Config/manager.cpp
@@ -60,7 +60,7 @@ void WallReel::Core::Config::Manager::_loadConfig(const QString& configPath) {
     const auto jsonObj = jsonDoc.object();
 
     _loadWallpaperConfig(jsonObj);
-    _loadPaletteConfig(jsonObj);
+    _loadThemeConfig(jsonObj);
     _loadActionConfig(jsonObj);
     _loadStyleConfig(jsonObj);
     _loadSortConfig(jsonObj);
@@ -112,22 +112,30 @@ void WallReel::Core::Config::Manager::_loadWallpaperConfig(const QJsonObject& ro
     }
 }
 
-void WallReel::Core::Config::Manager::_loadPaletteConfig(const QJsonObject& root) {
-    if (!root.contains("palettes") || !root["palettes"].isArray()) {
+void WallReel::Core::Config::Manager::_loadThemeConfig(const QJsonObject& root) {
+    if (!root.contains("theme") || !root["theme"].isObject()) {
         return;
     }
-    const QJsonArray& palettes = root["palettes"].toArray();
+    const QJsonObject& theme = root["theme"].toObject();
+    if (theme.contains("defaultPalette") && theme["defaultPalette"].isString()) {
+        m_themeConfig.defaultPalette = theme["defaultPalette"].toString();
+    }
+
+    if (!theme.contains("palettes") || !theme["palettes"].isArray()) {
+        return;
+    }
+    const QJsonArray& palettes = theme["palettes"].toArray();
 
     for (const auto& palItem : palettes) {
         if (palItem.isObject()) {
             QJsonObject palObj = palItem.toObject();
-            PaletteConfigItems::PaletteConfigItem palette;
+            ThemeConfigItems::PaletteConfigItem palette;
             if (palObj.contains("name") && palObj["name"].isString()) {
                 palette.name = palObj["name"].toString();
             }
             if (palObj.contains("colors") && palObj["colors"].isArray()) {
                 for (const auto& colorItem : palObj["colors"].toArray()) {
-                    PaletteConfigItems::PaletteColorConfigItem colorConfig;
+                    ThemeConfigItems::PaletteColorConfigItem colorConfig;
                     if (colorItem.isObject()) {
                         QJsonObject colorObj = colorItem.toObject();
                         if (colorObj.contains("name") && colorObj["name"].isString()) {
@@ -154,7 +162,7 @@ void WallReel::Core::Config::Manager::_loadPaletteConfig(const QJsonObject& root
                     }
                 }
             }
-            m_paletteConfig.palettes.append(palette);
+            m_themeConfig.palettes.append(palette);
         }
     }
 }
diff --git a/WallReel/Core/Config/manager.hpp b/WallReel/Core/Config/manager.hpp
index e86c340..a7628c3 100644
--- a/WallReel/Core/Config/manager.hpp
+++ b/WallReel/Core/Config/manager.hpp
@@ -55,7 +55,7 @@ class Manager : public QObject {
 
     const WallpaperConfigItems& getWallpaperConfig() const { return m_wallpaperConfig; }
 
-    const PaletteConfigItems& getPaletteConfig() const { return m_paletteConfig; }
+    const ThemeConfigItems& getThemeConfig() const { return m_themeConfig; }
 
     const ActionConfigItems& getActionConfig() const { return m_actionConfig; }
 
@@ -96,7 +96,7 @@ class Manager : public QObject {
     // Parse config
     void _loadConfig(const QString& configPath);
     void _loadWallpaperConfig(const QJsonObject& config);
-    void _loadPaletteConfig(const QJsonObject& config);
+    void _loadThemeConfig(const QJsonObject& config);
     void _loadActionConfig(const QJsonObject& config);
     void _loadStyleConfig(const QJsonObject& config);
     void _loadSortConfig(const QJsonObject& config);
@@ -108,7 +108,7 @@ class Manager : public QObject {
   private:
     const QDir m_configDir;
     WallpaperConfigItems m_wallpaperConfig;
-    PaletteConfigItems m_paletteConfig;
+    ThemeConfigItems m_themeConfig;
     ActionConfigItems m_actionConfig;
     StyleConfigItems m_styleConfig;
     SortConfigItems m_sortConfig;
diff --git a/WallReel/Core/Palette/manager.cpp b/WallReel/Core/Palette/manager.cpp
index 902dded..40f99a1 100644
--- a/WallReel/Core/Palette/manager.cpp
+++ b/WallReel/Core/Palette/manager.cpp
@@ -6,7 +6,7 @@
 #include "predefined.hpp"
 
 WallReel::Core::Palette::Manager::Manager(
-    const Config::PaletteConfigItems& config,
+    const Config::ThemeConfigItems& config,
     Image::Model& imageModel,
     QObject* parent) : QObject(parent), m_imageModel(imageModel) {
     connect(&m_imageModel, &Image::Model::focusedImageChanged, this, &Manager::updateColor);
@@ -45,6 +45,19 @@ WallReel::Core::Palette::Manager::Manager(
             m_palettes.append(newP);
         }
     }
+
+    // Set default palette if specified
+    if (!config.defaultPalette.isEmpty()) {
+        for (const auto& p : m_palettes) {
+            if (p.name == config.defaultPalette) {
+                m_selectedColor   = std::nullopt;
+                m_selectedPalette = p;
+                emit selectedColorChanged();
+                emit selectedPaletteChanged();
+                break;
+            }
+        }
+    }
 }
 
 void WallReel::Core::Palette::Manager::updateColor() {
diff --git a/WallReel/Core/Palette/manager.hpp b/WallReel/Core/Palette/manager.hpp
index deabe36..29ccc3a 100644
--- a/WallReel/Core/Palette/manager.hpp
+++ b/WallReel/Core/Palette/manager.hpp
@@ -12,11 +12,13 @@ namespace WallReel::Core::Palette {
 class Manager : public QObject {
     Q_OBJECT
     Q_PROPERTY(QList<PaletteItem> availablePalettes READ availablePalettes CONSTANT)
+    Q_PROPERTY(QVariant selectedPalette READ selectedPalette WRITE setSelectedPalette NOTIFY selectedPaletteChanged)
+    Q_PROPERTY(QVariant selectedColor READ selectedColor WRITE setSelectedColor NOTIFY selectedColorChanged)
     Q_PROPERTY(QColor color READ color NOTIFY colorChanged)
     Q_PROPERTY(QString colorName READ colorName NOTIFY colorNameChanged)
 
   public:
-    Manager(const Config::PaletteConfigItems& config,
+    Manager(const Config::ThemeConfigItems& config,
             Image::Model& imageModel,
             QObject* parent = nullptr);
 
@@ -28,7 +30,19 @@ class Manager : public QObject {
 
     const QString& colorName() const { return m_displayColorName; }
 
-    // Setters
+    QVariant selectedPalette() const {
+        if (m_selectedPalette) {
+            return QVariant::fromValue(*m_selectedPalette);
+        }
+        return QVariant();
+    }
+
+    QVariant selectedColor() const {
+        if (m_selectedColor) {
+            return QVariant::fromValue(*m_selectedColor);
+        }
+        return QVariant();
+    }
 
     Q_INVOKABLE void setSelectedPalette(const QVariant& paletteVar) {
         if (paletteVar.isNull() || !paletteVar.isValid()) {
@@ -36,6 +50,9 @@ class Manager : public QObject {
         } else {
             m_selectedPalette = paletteVar.value<PaletteItem>();
         }
+        m_selectedColor = std::nullopt;
+        emit selectedPaletteChanged();
+        emit selectedColorChanged();
         updateColor();
     }
 
@@ -45,6 +62,7 @@ class Manager : public QObject {
         } else {
             m_selectedColor = colorVar.value<ColorItem>();
         }
+        emit selectedColorChanged();
         updateColor();
     }
 
@@ -84,6 +102,8 @@ class Manager : public QObject {
     void updateColor();  // <- Image::Model::focusedImageChanged
 
   signals:
+    void selectedPaletteChanged();
+    void selectedColorChanged();
     void colorChanged();
     void colorNameChanged();
 
diff --git a/WallReel/UI/Modules/ColorControl.qml b/WallReel/UI/Modules/ColorControl.qml
index ac6e71c..5ffda49 100644
--- a/WallReel/UI/Modules/ColorControl.qml
+++ b/WallReel/UI/Modules/ColorControl.qml
@@ -18,6 +18,14 @@ Item {
 
     implicitWidth: row.implicitWidth
     implicitHeight: row.implicitHeight
+    Component.onCompleted: {
+        paletteCombo.currentIndex = selectedPalette ? availablePalettes.findIndex((p) => {
+            return p.name === selectedPalette.name;
+        }) : -1;
+        colorCombo.currentIndex = selectedColor ? availableColors.findIndex((c) => {
+            return c.name === selectedColor.name;
+        }) + 1 : 0;
+    }
 
     RowLayout {
         id: row
diff --git a/WallReel/UI/Providers/CarouselProvider.qml b/WallReel/UI/Providers/CarouselProvider.qml
index 7290a26..a116dc9 100644
--- a/WallReel/UI/Providers/CarouselProvider.qml
+++ b/WallReel/UI/Providers/CarouselProvider.qml
@@ -23,9 +23,9 @@ QtObject {
     property bool isSortReverse: ImageModel.currentSortReverse
     //// Palette / Color
     readonly property var availablePalettes: PaletteManager.availablePalettes
-    property var selectedPalette: null // PaletteItem | null
+    property var selectedPalette: PaletteManager.selectedPalette // PaletteItem | null
     readonly property var availableColors: selectedPalette ? selectedPalette.colors : []
-    property var selectedColor: null // ColorItem | null  (null means "auto")
+    property var selectedColor: PaletteManager.selectedColor // ColorItem | null  (null means "auto")
     readonly property string colorName: PaletteManager.colorName
     readonly property string colorHex: PaletteManager.color
     readonly property color colorValue: PaletteManager.color
@@ -58,12 +58,11 @@ QtObject {
     }
 
     function selectPalette(palette) {
-        selectedPalette = palette;
-        selectedColor = null; // reset color when palette changes
+        PaletteManager.selectedPalette = palette;
     }
 
     function selectColor(colorItem) {
-        selectedColor = colorItem;
+        PaletteManager.selectedColor = colorItem;
     }
 
     function setSearchText(text) {
@@ -83,10 +82,4 @@ QtObject {
             ImageModel.focusOnIndex(currentIndex);
 
     }
-    onSelectedPaletteChanged: () => {
-        PaletteManager.setSelectedPalette(selectedPalette);
-    }
-    onSelectedColorChanged: () => {
-        PaletteManager.setSelectedColor(selectedColor);
-    }
 }
diff --git a/WallReel/main.cpp b/WallReel/main.cpp
index 2b9363b..df35fd0 100644
--- a/WallReel/main.cpp
+++ b/WallReel/main.cpp
@@ -57,7 +57,7 @@ int main(int argc, char* argv[]) {
         imageModel);
 
     auto paletteMgr = new Palette::Manager(
-        config->getPaletteConfig(),
+        config->getThemeConfig(),
         *imageModel,
         imageModel);
     engine.rootContext()->setContextProperty("PaletteManager", paletteMgr);