diff --git a/app/SettingsWindow.qml b/app/SettingsWindow.qml
index 3718631..10105ae 100644
--- a/app/SettingsWindow.qml
+++ b/app/SettingsWindow.qml
@@ -127,6 +127,11 @@ ApplicationWindow {
                             onValueChanged: shadersettings.contrast = value
                             _value: shadersettings.contrast
                         }
+                        SettingComponent{
+                            name: "Brightness"
+                            onValueChanged: shadersettings.brightness = value
+                            _value: shadersettings.brightness
+                        }
                     }
                 }
             }
diff --git a/app/ShaderManager.qml b/app/ShaderManager.qml
index ab33b39..438d39c 100644
--- a/app/ShaderManager.qml
+++ b/app/ShaderManager.qml
@@ -37,6 +37,8 @@ ShaderEffect {
     property real brightness_flickering: shadersettings.brightness_flickering
     property real horizontal_sincronization: shadersettings.horizontal_sincronization
 
+    property real brightness: shadersettings.brightness * 1.5 + 0.5
+
     property real deltay: 3 / terminal.height
     property real deltax: 3 / terminal.width
 
@@ -173,6 +175,6 @@ ShaderEffect {
             finalColor = mix(finalColor, vec3(0.0), brightness);" : "") +
 
         "
-        gl_FragColor = vec4(finalColor, 1.0);
+        gl_FragColor = vec4(finalColor *"+brightness+", 1.0);
     }"
 }
diff --git a/app/ShaderSettings.qml b/app/ShaderSettings.qml
index a7f7c46..270a98d 100644
--- a/app/ShaderSettings.qml
+++ b/app/ShaderSettings.qml
@@ -26,6 +26,8 @@ Item{
     property real ambient_light: 0.2
     property real contrast: 0.8
 
+    property real brightness: 0.5
+
     function mix(c1, c2, alpha){
         return Qt.rgba(c1.r * alpha + c2.r * (1-alpha),
                        c1.g * alpha + c2.g * (1-alpha),
diff --git a/app/frames/utils/FrameShader.qml b/app/frames/utils/FrameShader.qml
index 8e746a8..29f3869 100644
--- a/app/frames/utils/FrameShader.qml
+++ b/app/frames/utils/FrameShader.qml
@@ -10,6 +10,7 @@ ShaderEffect{
     property real time: timetimer.time
     property variant randomFunctionSource: randfuncsource
     property real brightness_flickering: shadersettings.brightness_flickering
+    property real brightness: shadersettings.brightness * 1.5 + 0.5
 
     property color reflection_color: Qt.rgba((font_color.r*0.3 + background_color.r*0.7),
                                              (font_color.g*0.3 + background_color.g*0.7),
@@ -28,12 +29,11 @@ ShaderEffect{
                     varying lowp float brightness;
 
                     void main() {
-                        qt_TexCoord0 = qt_MultiTexCoord0;" +
-
+                        qt_TexCoord0 = qt_MultiTexCoord0;
+                        brightness = "+brightness+";" +
                         (brightness_flickering !== 0 ?
-                            "brightness = texture2D(randomFunctionSource, vec2(fract(time/(1024.0*2.0)), fract(time/(1024.0*1024.0*2.0)))).r * "+brightness_flickering+";"
-                        :
-                            "brightness = 0.0;") + "
+                            "brightness -= texture2D(randomFunctionSource, vec2(fract(time/(1024.0*2.0)), fract(time/(1024.0*1024.0*2.0)))).r * "+brightness_flickering+";"
+                        : "") + "
 
                         gl_Position = qt_Matrix * qt_Vertex;
                     }"
@@ -61,7 +61,7 @@ ShaderEffect{
                                 vec4 txt_normal = texture2D(normals, coords);
                                 vec3 normal = normalize(txt_normal.rgb * 2.0 - 1.0);
                                 vec3 light_dir = normalize(vec3(0.5,0.5, 0.0) - vec3(qt_TexCoord0, 0.0));
-                                float reflection = (dot(normal, light_dir) * 0.4 + 0.2) * (1.0-brightness);
+                                float reflection = (dot(normal, light_dir) * 0.4 + 0.2) * brightness;
                                 vec3 final_color = reflection_color * reflection * 0.5;
                                 final_color += txt_color * ambient_light;
                                 gl_FragColor = vec4(final_color * txt_normal.a, txt_color.a);