diff --git a/kwin/energize-a/onSettingsChanged.js b/kwin/energize-a/onSettingsChanged.js
index e6b23f2..9d2b8fa 100644
--- a/kwin/energize-a/onSettingsChanged.js
+++ b/kwin/energize-a/onSettingsChanged.js
@@ -3,5 +3,5 @@
 // the effect.
 
 effect.setUniform(this.shader, 'uDuration', this.duration * 0.001);
-effect.setUniform(this.shader, 'uColor', effect.readConfig('Color', 'white'));
+effect.setUniform(this.shader, 'uColor', this.readRGBConfig('Color'));
 effect.setUniform(this.shader, 'uScale', effect.readConfig('Scale', 1.0));
\ No newline at end of file
diff --git a/resources/shaders/energize-a.frag b/resources/shaders/energize-a.frag
index 6869dd7..8124fe5 100644
--- a/resources/shaders/energize-a.frag
+++ b/resources/shaders/energize-a.frag
@@ -13,7 +13,7 @@
 
 // The content from common.glsl is automatically prepended to each shader effect.
 
-uniform vec4 uColor;
+uniform vec3 uColor;
 uniform float uScale;
 
 const float FADE_IN_TIME    = 0.3;
@@ -63,7 +63,7 @@ void main() {
   vec4 oColor = getInputColor(iTexCoord.st);
 
   // Dissolve window to effect color / transparency.
-  oColor.rgb = mix(uColor.rgb, oColor.rgb, 0.2 * masks.y + 0.8);
+  oColor.rgb = mix(uColor, oColor.rgb, 0.2 * masks.y + 0.8);
   oColor.a   = oColor.a * masks.y;
 
   vec2 scaledUV = (iTexCoord.st - 0.5) * (1.0 + 0.1 * progress);
@@ -81,7 +81,7 @@ void main() {
     particles += 0.5 * pow(0.2 * (1.0 / (1.0 - atoms) - 1.0), 2.0);
   }
 
-  oColor.rgb += uColor.rgb * particles * masks.x;
+  oColor.rgb += uColor * particles * masks.x;
   oColor.a += particles * masks.x;
 
   // These are pretty useful for understanding how this works.
diff --git a/src/EnergizeA.js b/src/EnergizeA.js
index 4d76cc6..1064c7e 100644
--- a/src/EnergizeA.js
+++ b/src/EnergizeA.js
@@ -51,7 +51,7 @@ var EnergizeA = class {
         const c = Clutter.Color.from_string(settings.get_string('energize-a-color'))[1];
 
         // clang-format off
-        shader.set_uniform_float(shader._uColor, 4, [c.red / 255, c.green / 255, c.blue / 255, 1.0]);
+        shader.set_uniform_float(shader._uColor, 3, [c.red / 255, c.green / 255, c.blue / 255]);
         shader.set_uniform_float(shader._uScale, 1, [settings.get_double('energize-a-scale')]);
         // clang-format on
       });