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-shapes/src/jvmDemo/kotlin/adjust/DemoAdjustContour04.kt

@@ -6,26 +6,24 @@ import org.openrndr.extra.shapes.adjust.adjustContour
 import org.openrndr.shape.Circle
 import kotlin.math.cos
 
-fun main() {
-    application {
-        configure {
-            width = 800
-            height = 800
-        }
-        program {
-            extend {
-                var contour = if (seconds.mod(2.0) < 1.0) {
-                    drawer.bounds.scaledBy(0.5, 0.5, 0.5).contour
-                } else {
-                    Circle(drawer.bounds.center, 300.0).contour
-                }
-                contour = adjustContour(contour) {
-                    selectEdge(0)
-                    edge.replaceWith(cos(seconds) * 0.5 + 0.5)
-                }
-                drawer.stroke = ColorRGBa.RED
-                drawer.contour(contour)
+fun main() = application {
+    configure {
+        width = 800
+        height = 800
+    }
+    program {
+        extend {
+            var contour = if (seconds.mod(2.0) < 1.0) {
+                drawer.bounds.scaledBy(0.5, 0.5, 0.5).contour
+            } else {
+                Circle(drawer.bounds.center, 300.0).contour
             }
+            contour = adjustContour(contour) {
+                selectEdge(0)
+                edge.replaceWith(cos(seconds) * 0.5 + 0.5)
+            }
+            drawer.stroke = ColorRGBa.RED
+            drawer.contour(contour)
         }
     }
-}
+}