Demos: ensure all use fun main() = application {

- Adjust some demo window sizes.
- Replace Random.double by Double.uniform
- Tweak some demos so screenshots look more interesting

orx-compositor/src/jvmDemo/kotlin/DemoAside01.kt

@@ -6,29 +6,31 @@ import org.openrndr.extra.fx.blur.HashBlurDynamic
 import org.openrndr.extra.fx.patterns.Checkers
 import kotlin.math.cos
 
-fun main() {
-    application {
-        program {
-            val c = compose {
-                layer {
-                    val a = aside(colorType = ColorType.FLOAT32) {
-                        post(Checkers()) {
-                            this.size = cos(seconds)*0.5 + 0.5
-                        }
-                    }
-                    draw {
-                        drawer.clear(ColorRGBa.GRAY.shade(0.5))
-                        drawer.circle(width/2.0, height/2.0, 100.0)
-                    }
-                    post(HashBlurDynamic(), a) {
-                        time = seconds
-                        radius = 25.0
+fun main() = application {
+    configure {
+        width = 720
+        height = 720
+    }
+    program {
+        val c = compose {
+            layer {
+                val a = aside(colorType = ColorType.FLOAT32) {
+                    post(Checkers()) {
+                        this.size = cos(seconds + 2.0) * 0.5 + 0.5
                     }
                 }
-            }
-            extend {
-                c.draw(drawer)
+                draw {
+                    drawer.clear(ColorRGBa.GRAY.shade(0.5))
+                    drawer.circle(width / 2.0, height / 2.0, 100.0)
+                }
+                post(HashBlurDynamic(), a) {
+                    time = seconds
+                    radius = 25.0
+                }
             }
         }
+        extend {
+            c.draw(drawer)
+        }
     }
-}
+}