diff --git a/app/ShaderManager.qml b/app/ShaderManager.qml
index 6b8cb82..ce3dedd 100644
--- a/app/ShaderManager.qml
+++ b/app/ShaderManager.qml
@@ -159,7 +159,7 @@ ShaderEffect {
                     noise += horizontal_distortion;" : "")
             : "") +
 
-            "float color = texture2D(source, coords).r;" +
+            "float color = texture2D(source, coords).a;" +
 
             (noise_strength !== 0 ? "
                 color += stepNoise(coords) * noise * (1.0 - distance * distance * 2.0);" : "") +
@@ -172,7 +172,7 @@ ShaderEffect {
 
             "vec3 finalColor = mix(background_color, font_color, color).rgb;" +
             "finalColor = mix(finalColor * 1.1, vec3(0.0), 1.2 * distance * distance);" +
-            "finalColor *= texture2D(rasterizationSource, coords).r;" +
+            "finalColor *= texture2D(rasterizationSource, coords).a;" +
 
             (brightness_flickering !== 0 ? "
                 finalColor *= brightness;" : "") +
diff --git a/app/Terminal.qml b/app/Terminal.qml
index 5946f07..38686a1 100644
--- a/app/Terminal.qml
+++ b/app/Terminal.qml
@@ -73,7 +73,6 @@ Item{
         kterminal.copyClipboard();
     }
 
-
     KTerminal {
         id: kterminal
         anchors.fill: parent
@@ -218,6 +217,7 @@ Item{
         id: finalSource
         sourceItem: blurredterminal
         sourceRect: frame.sourceRect
+        format: ShaderEffectSource.Alpha
     }
     ShaderEffect {
         id: blurredterminal
@@ -252,13 +252,13 @@ Item{
 
         "float color = texture2D(source, coords + delta).r * 256.0;" +
         (mBlur !== 0 ?
-        "float blurredSourceColor = texture2D(blurredSource, qt_TexCoord0).r * 256.0;" +
+        "float blurredSourceColor = texture2D(blurredSource, qt_TexCoord0).a * 256.0;" +
         "blurredSourceColor = blurredSourceColor - blurredSourceColor * " + (1.0 - motionBlurCoefficient) * fpsAttenuation+ ";" +
         "color = step(1.0, color) * color + step(color, 1.0) * blurredSourceColor;"
         : "") +
 
 
-        "gl_FragColor = vec4(vec3(floor(color) / 256.0), 1.0);" +
+        "gl_FragColor.a = vec4(floor(color) / 256.0);" +
         "}"
     }
     //////////////////////////////////////////////////////////////////////
@@ -308,7 +308,7 @@ Item{
                  }" +
 
         "void main() {" +
-            "gl_FragColor = vec4(getScanlineIntensity(qt_TexCoord0));" +
+            "gl_FragColor.a = getScanlineIntensity(qt_TexCoord0);" +
         "}"
     }
     ShaderEffectSource{
@@ -317,5 +317,6 @@ Item{
         sourceRect: frame.sourceRect
         hideSource: true
         smooth: true
+        format: ShaderEffectSource.Alpha
     }
 }
diff --git a/app/app.qmlproject.user b/app/app.qmlproject.user
index 1b7131c..82a8fa2 100644
--- a/app/app.qmlproject.user
+++ b/app/app.qmlproject.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 3.0.1, 2014-06-07T10:59:29. -->
+<!-- Written by QtCreator 3.0.1, 2014-06-07T14:58:56. -->
 <qtcreator>
  <data>
   <variable>ProjectExplorer.Project.ActiveTarget</variable>