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/blend/DemoContourBlend01.kt

@@ -10,28 +10,25 @@ import org.openrndr.shape.Circle
 import kotlin.math.PI
 import kotlin.math.cos
 
-
 /**
  * Demonstration of uniform contour blending
  */
-fun main() {
-    application {
-        configure {
-            width = 720
-            height = 720
-        }
-        program {
-            val a = Circle(Vector2.ZERO, 90.0).contour
-            val b = regularStar(5, 30.0, 90.0, center = Vector2.ZERO, phase = 180.0)
-            val blend = a.blend(b)
-            extend {
-                drawer.bounds.grid(3, 3).flatten().forEachIndexed { index, it ->
-                    drawer.isolated {
-                        drawer.translate(it.center)
-                        drawer.contour(blend.mix(cos(index * PI * 2.0 / 9.0 + seconds) * 0.5 + 0.5))
-                    }
+fun main() = application {
+    configure {
+        width = 720
+        height = 720
+    }
+    program {
+        val a = Circle(Vector2.ZERO, 90.0).contour
+        val b = regularStar(5, 30.0, 90.0, center = Vector2.ZERO, phase = 180.0)
+        val blend = a.blend(b)
+        extend {
+            drawer.bounds.grid(3, 3).flatten().forEachIndexed { index, it ->
+                drawer.isolated {
+                    drawer.translate(it.center)
+                    drawer.contour(blend.mix(cos(index * PI * 2.0 / 9.0 + seconds) * 0.5 + 0.5))
                 }
             }
         }
     }
-}
+}