diff --git a/src/plugins/colorblindnesscorrection/CMakeLists.txt b/src/plugins/colorblindnesscorrection/CMakeLists.txt
index 49b860cb47..e63a34fc24 100644
--- a/src/plugins/colorblindnesscorrection/CMakeLists.txt
+++ b/src/plugins/colorblindnesscorrection/CMakeLists.txt
@@ -6,7 +6,13 @@ kwin_add_builtin_effect(colorblindnesscorrection
     colorblindnesscorrection.qrc
     main.cpp
 )
-kconfig_add_kcfg_files(colorblindnesscorrection colorblindnesscorrection_settings.kcfgc GENERATE_MOC)
+set(SETTINGS_HEADER "colorblindnesscorrection_settings_singleton")
+set(GENERATE_MOC "false")
+set(USE_SINGLETON "true")
+set(KCFGFILE_ARGS "arg=\"true\"")
+configure_file(colorblindnesscorrection_settings.kcfgc.in ${CMAKE_CURRENT_BINARY_DIR}/${SETTINGS_HEADER}.kcfgc @ONLY)
+configure_file(colorblindnesscorrection_settings.kcfg.in ${CMAKE_CURRENT_BINARY_DIR}/${SETTINGS_HEADER}.kcfg @ONLY)
+kconfig_add_kcfg_files(colorblindnesscorrection ${CMAKE_CURRENT_BINARY_DIR}/${SETTINGS_HEADER}.kcfgc)
 target_link_libraries(colorblindnesscorrection PRIVATE
     kwin
 
@@ -19,14 +25,20 @@ if (NOT KWIN_BUILD_KCMS)
     return()
 endif()
 
+set(SETTINGS_HEADER "colorblindnesscorrection_settings")
 kcmutils_add_qml_kcm(kwin_colorblindnesscorrection_config SOURCES colorblindnesscorrection_config.cpp INSTALL_NAMESPACE "kwin/effects/configs" DISABLE_DESKTOP_FILE_GENERATION)
 kcmutils_generate_module_data(kwin_colorblindnesscorrection_config
     MODULE_DATA_HEADER colorblindnesscorrection_settingsdata.h
     MODULE_DATA_CLASS_NAME ColorBlindnessCorrectionSettingsData
-    SETTINGS_HEADERS colorblindnesscorrection_settings.h
+    SETTINGS_HEADERS ${SETTINGS_HEADER}.h
     SETTINGS_CLASSES ColorBlindnessCorrectionSettings
 )
-kconfig_add_kcfg_files(kwin_colorblindnesscorrection_config colorblindnesscorrection_settings.kcfgc GENERATE_MOC)
+set(GENERATE_MOC "true")
+set(USE_SINGLETON "false")
+set(KCFGFILE_ARGS "name=\"kwinrc\"")
+configure_file(colorblindnesscorrection_settings.kcfgc.in ${CMAKE_CURRENT_BINARY_DIR}/${SETTINGS_HEADER}.kcfgc @ONLY)
+configure_file(colorblindnesscorrection_settings.kcfg.in ${CMAKE_CURRENT_BINARY_DIR}/${SETTINGS_HEADER}.kcfg @ONLY)
+kconfig_add_kcfg_files(kwin_colorblindnesscorrection_config ${CMAKE_CURRENT_BINARY_DIR}/colorblindnesscorrection_settings.kcfgc GENERATE_MOC)
 target_link_libraries(kwin_colorblindnesscorrection_config
     KF6::ConfigCore
     KF6::KCMUtils
diff --git a/src/plugins/colorblindnesscorrection/colorblindnesscorrection.cpp b/src/plugins/colorblindnesscorrection/colorblindnesscorrection.cpp
index 00a3961c38..370336ce37 100644
--- a/src/plugins/colorblindnesscorrection/colorblindnesscorrection.cpp
+++ b/src/plugins/colorblindnesscorrection/colorblindnesscorrection.cpp
@@ -6,12 +6,10 @@
 
 #include "colorblindnesscorrection.h"
 
-#include <KSharedConfig>
-
 #include "effect/effecthandler.h"
 #include "opengl/glshader.h"
 
-#include "colorblindnesscorrection_settings.h"
+#include "colorblindnesscorrection_settings_singleton.h"
 
 Q_LOGGING_CATEGORY(KWIN_COLORBLINDNESS_CORRECTION, "kwin_effect_colorblindnesscorrection", QtWarningMsg)
 
@@ -26,8 +24,11 @@ namespace KWin
 
 ColorBlindnessCorrectionEffect::ColorBlindnessCorrectionEffect()
     : OffscreenEffect()
-    , m_mode(static_cast<Mode>(ColorBlindnessCorrectionSettings().mode()))
 {
+    ColorBlindnessCorrectionSettings::instance(effects->config());
+    m_mode = static_cast<Mode>(ColorBlindnessCorrectionSettings::mode());
+    m_intensity = std::clamp<float>(ColorBlindnessCorrectionSettings::intensity(), 0.0f, 1.0f);
+
     loadData();
 }
 
@@ -65,6 +66,10 @@ void ColorBlindnessCorrectionEffect::loadData()
         return;
     }
 
+    if (ShaderBinder binder{m_shader.get()}; !m_shader->setUniform("intensity", m_intensity)) {
+        qCWarning(KWIN_COLORBLINDNESS_CORRECTION) << "Failed to set intensity";
+    }
+
     for (const auto windows = effects->stackingOrder(); EffectWindow * w : windows) {
         correctColor(w);
     }
@@ -108,12 +113,15 @@ void ColorBlindnessCorrectionEffect::reconfigure(ReconfigureFlags flags)
         return;
     }
 
-    auto newMode = static_cast<Mode>(ColorBlindnessCorrectionSettings().mode());
-    if (m_mode == newMode) {
+    ColorBlindnessCorrectionSettings::self()->read();
+    const auto newMode = static_cast<Mode>(ColorBlindnessCorrectionSettings::mode());
+    const auto newIntensity = std::clamp<float>(ColorBlindnessCorrectionSettings::intensity(), 0.0f, 1.0f);
+    if (m_mode == newMode && qFuzzyCompare(m_intensity, newIntensity)) {
         return;
     }
 
     m_mode = newMode;
+    m_intensity = newIntensity;
 
     disconnect(effects, &EffectsHandler::windowDeleted, this, &ColorBlindnessCorrectionEffect::slotWindowDeleted);
     disconnect(effects, &EffectsHandler::windowAdded, this, &ColorBlindnessCorrectionEffect::correctColor);
diff --git a/src/plugins/colorblindnesscorrection/colorblindnesscorrection.h b/src/plugins/colorblindnesscorrection/colorblindnesscorrection.h
index 4ad7854a89..8ef48eaba8 100644
--- a/src/plugins/colorblindnesscorrection/colorblindnesscorrection.h
+++ b/src/plugins/colorblindnesscorrection/colorblindnesscorrection.h
@@ -48,6 +48,7 @@ private:
     void loadData();
 
     Mode m_mode = Protanopia;
+    float m_intensity = 1.0f;
 
     std::unordered_set<KWin::EffectWindow *> m_windows;
     std::unique_ptr<GLShader> m_shader;
diff --git a/src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfg b/src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfg.in
similarity index 81%
rename from src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfg
rename to src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfg.in
index 98e3cd43f6..5b0492abc8 100644
--- a/src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfg
+++ b/src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfg.in
@@ -7,10 +7,13 @@
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
                           http://www.kde.org/standards/kcfg/1.0/kcfg.xsd" >
-    <kcfgfile name="kwinrc" />
+    <kcfgfile @KCFGFILE_ARGS@/>
     <group name="Effect-colorblindnesscorrection">
         <entry name="Mode" type="UInt">
             <default>0</default>
         </entry>
+        <entry name="Intensity" type="Double">
+            <default>1.0</default>
+        </entry>
     </group>
 </kcfg>
diff --git a/src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfgc b/src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfgc.in
similarity index 51%
rename from src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfgc
rename to src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfgc.in
index b084975d1a..288b747f80 100644
--- a/src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfgc
+++ b/src/plugins/colorblindnesscorrection/colorblindnesscorrection_settings.kcfgc.in
@@ -1,9 +1,10 @@
 # SPDX-FileCopyrightText: 2023 Fushan Wen <qydwhotmail@gmail.com>
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-File=colorblindnesscorrection_settings.kcfg
+File=@SETTINGS_HEADERS@.kcfg
 ClassName=ColorBlindnessCorrectionSettings
+DefaultValueGetters=@GENERATE_MOC@
+GenerateProperties=@GENERATE_MOC@
+ParentInConstructor=@GENERATE_MOC@
+Singleton=@USE_SINGLETON@
 Mutators=true
-DefaultValueGetters=true
-GenerateProperties=true
-ParentInConstructor=true
diff --git a/src/plugins/colorblindnesscorrection/shaders/Deutranopia.frag b/src/plugins/colorblindnesscorrection/shaders/Deutranopia.frag
index ee39169ea4..6b0ef267e8 100644
--- a/src/plugins/colorblindnesscorrection/shaders/Deutranopia.frag
+++ b/src/plugins/colorblindnesscorrection/shaders/Deutranopia.frag
@@ -3,6 +3,7 @@
 uniform sampler2D sampler;
 uniform vec4 modulation;
 uniform float saturation;
+uniform float intensity;
 varying vec2 texcoord0;
 
 void main()
@@ -27,7 +28,7 @@ void main()
     vec3 error = vec3((0.0809444479 * l) + (-0.130504409 * m) + (0.116721066 * s),
                       (-0.0102485335 * l) + (0.0540193266 * m) + (-0.113614708 * s),
                       (-0.000365296938 * l) + (-0.00412161469 * m) + (0.693511405 * s));
-    vec3 diff = tex.rgb - error;
+    vec3 diff = (tex.rgb - error) * vec3(intensity);
     vec3 correction = vec3(0.0,
                            (diff.r * 0.7) + (diff.g * 1.0),
                            (diff.r * 0.7) + (diff.b * 1.0));
diff --git a/src/plugins/colorblindnesscorrection/shaders/Deutranopia_core.frag b/src/plugins/colorblindnesscorrection/shaders/Deutranopia_core.frag
index 16c9c76bc4..3ba483c0f9 100644
--- a/src/plugins/colorblindnesscorrection/shaders/Deutranopia_core.frag
+++ b/src/plugins/colorblindnesscorrection/shaders/Deutranopia_core.frag
@@ -4,7 +4,7 @@
 uniform sampler2D sampler;
 uniform vec4 modulation;
 uniform float saturation;
-
+uniform float intensity;
 in vec2 texcoord0;
 out vec4 fragColor;
 
@@ -30,7 +30,7 @@ void main()
     vec3 error = vec3((0.0809444479 * l) + (-0.130504409 * m) + (0.116721066 * s),
                       (-0.0102485335 * l) + (0.0540193266 * m) + (-0.113614708 * s),
                       (-0.000365296938 * l) + (-0.00412161469 * m) + (0.693511405 * s));
-    vec3 diff = tex.rgb - error;
+    vec3 diff = (tex.rgb - error) * vec3(intensity);
     vec3 correction = vec3(0.0,
                            (diff.r * 0.7) + (diff.g * 1.0),
                            (diff.r * 0.7) + (diff.b * 1.0));
diff --git a/src/plugins/colorblindnesscorrection/shaders/Protanopia.frag b/src/plugins/colorblindnesscorrection/shaders/Protanopia.frag
index 0aae250862..04a5c33e43 100644
--- a/src/plugins/colorblindnesscorrection/shaders/Protanopia.frag
+++ b/src/plugins/colorblindnesscorrection/shaders/Protanopia.frag
@@ -3,6 +3,7 @@
 uniform sampler2D sampler;
 uniform vec4 modulation;
 uniform float saturation;
+uniform float intensity;
 varying vec2 texcoord0;
 
 void main()
@@ -27,7 +28,7 @@ void main()
     vec3 error = vec3((0.0809444479 * l) + (-0.130504409 * m) + (0.116721066 * s),
                       (-0.0102485335 * l) + (0.0540193266 * m) + (-0.113614708 * s),
                       (-0.000365296938 * l) + (-0.00412161469 * m) + (0.693511405 * s));
-    vec3 diff = tex.rgb - error;
+    vec3 diff = (tex.rgb - error) * vec3(intensity);
     vec3 correction = vec3(0.0,
                            (diff.r * 0.7) + (diff.g * 1.0),
                            (diff.r * 0.7) + (diff.b * 1.0));
diff --git a/src/plugins/colorblindnesscorrection/shaders/Protanopia_core.frag b/src/plugins/colorblindnesscorrection/shaders/Protanopia_core.frag
index 46cbff9590..6cb7d2808f 100644
--- a/src/plugins/colorblindnesscorrection/shaders/Protanopia_core.frag
+++ b/src/plugins/colorblindnesscorrection/shaders/Protanopia_core.frag
@@ -4,7 +4,7 @@
 uniform sampler2D sampler;
 uniform vec4 modulation;
 uniform float saturation;
-
+uniform float intensity;
 in vec2 texcoord0;
 out vec4 fragColor;
 
@@ -30,7 +30,7 @@ void main()
     vec3 error = vec3((0.0809444479 * l) + (-0.130504409 * m) + (0.116721066 * s),
                       (-0.0102485335 * l) + (0.0540193266 * m) + (-0.113614708 * s),
                       (-0.000365296938 * l) + (-0.00412161469 * m) + (0.693511405 * s));
-    vec3 diff = tex.rgb - error;
+    vec3 diff = (tex.rgb - error) * vec3(intensity);
     vec3 correction = vec3(0.0,
                            (diff.r * 0.7) + (diff.g * 1.0),
                            (diff.r * 0.7) + (diff.b * 1.0));
diff --git a/src/plugins/colorblindnesscorrection/shaders/Tritanopia.frag b/src/plugins/colorblindnesscorrection/shaders/Tritanopia.frag
index 635f269c73..f94a83567e 100644
--- a/src/plugins/colorblindnesscorrection/shaders/Tritanopia.frag
+++ b/src/plugins/colorblindnesscorrection/shaders/Tritanopia.frag
@@ -3,6 +3,7 @@
 uniform sampler2D sampler;
 uniform vec4 modulation;
 uniform float saturation;
+uniform float intensity;
 varying vec2 texcoord0;
 
 void main()
@@ -27,7 +28,7 @@ void main()
     vec3 error = vec3((0.0809444479 * l) + (-0.130504409 * m) + (0.116721066 * s),
                       (-0.0102485335 * l) + (0.0540193266 * m) + (-0.113614708 * s),
                       (-0.000365296938 * l) + (-0.00412161469 * m) + (0.693511405 * s));
-    vec3 diff = tex.rgb - error;
+    vec3 diff = (tex.rgb - error) * vec3(intensity);
     vec3 correction = vec3(0.0,
                            (diff.r * 0.7) + (diff.g * 1.0),
                            (diff.r * 0.7) + (diff.b * 1.0));
diff --git a/src/plugins/colorblindnesscorrection/shaders/Tritanopia_core.frag b/src/plugins/colorblindnesscorrection/shaders/Tritanopia_core.frag
index 4e9276290a..db09c4e415 100644
--- a/src/plugins/colorblindnesscorrection/shaders/Tritanopia_core.frag
+++ b/src/plugins/colorblindnesscorrection/shaders/Tritanopia_core.frag
@@ -4,7 +4,7 @@
 uniform sampler2D sampler;
 uniform vec4 modulation;
 uniform float saturation;
-
+uniform float intensity;
 in vec2 texcoord0;
 out vec4 fragColor;
 
@@ -30,7 +30,7 @@ void main()
     vec3 error = vec3((0.0809444479 * l) + (-0.130504409 * m) + (0.116721066 * s),
                       (-0.0102485335 * l) + (0.0540193266 * m) + (-0.113614708 * s),
                       (-0.000365296938 * l) + (-0.00412161469 * m) + (0.693511405 * s));
-    vec3 diff = tex.rgb - error;
+    vec3 diff = (tex.rgb - error) * vec3(intensity);
     vec3 correction = vec3(0.0,
                            (diff.r * 0.7) + (diff.g * 1.0),
                            (diff.r * 0.7) + (diff.b * 1.0));
diff --git a/src/plugins/colorblindnesscorrection/ui/main.qml b/src/plugins/colorblindnesscorrection/ui/main.qml
index e27ea4d5de..f574fa5398 100644
--- a/src/plugins/colorblindnesscorrection/ui/main.qml
+++ b/src/plugins/colorblindnesscorrection/ui/main.qml
@@ -16,7 +16,7 @@ KCM.SimpleKCM {
     id: root
 
     implicitWidth: Kirigami.Units.gridUnit * 30
-    implicitHeight: Kirigami.Units.gridUnit * 22
+    implicitHeight: Kirigami.Units.gridUnit * 24
 
     RowLayout {
         id: previewArea
@@ -67,6 +67,7 @@ KCM.SimpleKCM {
         }
 
         QQC.ComboBox {
+            id: colorComboBox
             Kirigami.FormData.label: i18nc("@label", "Mode:")
             currentIndex: kcm.settings.mode
             textRole: "text"
@@ -79,5 +80,15 @@ KCM.SimpleKCM {
 
             onActivated: kcm.settings.mode = currentValue
         }
+
+        QQC.Slider {
+            Kirigami.FormData.label: i18nc("@label", "Intensity:")
+            Layout.preferredWidth: colorComboBox.implicitWidth
+            from: 0.0
+            to: 1.0
+            value: kcm.settings.intensity
+
+            onMoved: kcm.settings.intensity = value
+        }
     }
 }