Document the --version option

app/qml/ApplicationSettings.qml

@@ -746,7 +746,7 @@ QtObject {
 
         loadCustomProfiles()
 
-        var profileArgPosition = args.indexOf(/-p|--profile/)
+        var profileArgPosition = args.indexOf("--profile")
         if (profileArgPosition !== -1) {
             var profileIndex = getProfileIndexByName(
                         args[profileArgPosition + 1])

app/qml/ShaderTerminal.qml

@@ -247,17 +247,6 @@ Item {
              "  return outColor;
              }" +
 
-             //pseudo-random vector
-             //https://stackoverflow.com/a/10625698
-             "float random( vec2 p )
-             {
-                 vec2 K1 = vec2(
-                     23.14069263277926, // e^pi (Gelfond's constant)
-                     2.665144142690225 // 2^sqrt(2) (Gelfond-Schneider constant)
-                 );
-                 return fract( cos( dot(p,K1) ) * 12345.6789 );
-             }" +
-
              "void main() {" +
                  "vec2 cc = vec2(0.5) - qt_TexCoord0;" +
                  "float distance = length(cc);" +
@@ -296,11 +285,7 @@ Item {
                  : "") +
 
                  (jitter !== 0 || staticNoise !== 0 ?
-                 "vec4 noiseTexel = texture2D(
+                     "vec4 noiseTexel = texture2D(noiseSource, scaleNoiseSize * coords + vec2(fract(time / 51.0), fract(time / 237.0)));"
-                     noiseSource, scaleNoiseSize * coords
-                     + vec2(0.0, random(vec2(fract(time / 237.0), 822.9582)))
-                     + vec2(fract(time / 31.0), fract(time / 177.0))
-                 );"
                  : "") +
 
                  (jitter !== 0 ? "