🎉 Add support for alpha channel in color of TV Effect, TV Glitch, and Glitch

src/Glitch.js

@@ -59,7 +59,7 @@ var Glitch = class {
 
         // clang-format off
         shader.set_uniform_float(shader._uSeed,  1, [testMode ? 0 : Math.random()]);
-        shader.set_uniform_float(shader._uColor, 3, [c.red / 255, c.green / 255, c.blue / 255]);
+        shader.set_uniform_float(shader._uColor, 4, [c.red / 255, c.green / 255, c.blue / 255, c.alpha / 255]);
         shader.set_uniform_float(shader._uScale, 1, [settings.get_double('glitch-scale')]);
         shader.set_uniform_float(shader._uStrength, 1, [settings.get_double('glitch-strength')]);
         shader.set_uniform_float(shader._uSpeed, 1, [settings.get_double('glitch-speed')]);

src/TVEffect.js

@@ -51,8 +51,8 @@ var TVEffect = class {
       // Write all uniform values at the start of each animation.
       shader.connect('begin-animation', (shader, settings) => {
         const c = Clutter.Color.from_string(settings.get_string('tv-effect-color'))[1];
-        shader.set_uniform_float(shader._uColor, 3,
-                                 [c.red / 255, c.green / 255, c.blue / 255]);
+        shader.set_uniform_float(
+          shader._uColor, 4, [c.red / 255, c.green / 255, c.blue / 255, c.alpha / 255]);
       });
     });
   }

src/TVGlitch.js

@@ -60,7 +60,7 @@ var TVGlitch = class {
 
         // clang-format off
         shader.set_uniform_float(shader._uSeed,  1, [testMode ? 0 : Math.random()]);
-        shader.set_uniform_float(shader._uColor, 3, [c.red / 255, c.green / 255, c.blue / 255]);
+        shader.set_uniform_float(shader._uColor, 4, [c.red / 255, c.green / 255, c.blue / 255, c.alpha / 255]);
         shader.set_uniform_float(shader._uScale, 1, [settings.get_double('tv-glitch-scale')]);
         shader.set_uniform_float(shader._uStrength, 1, [settings.get_double('tv-glitch-strength')]);
         shader.set_uniform_float(shader._uSpeed, 1, [settings.get_double('tv-glitch-speed')]);