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/ordering/DemoHilbertOrder01.kt

@@ -6,20 +6,18 @@ import org.openrndr.extra.noise.uniform
 import org.openrndr.extra.shapes.ordering.hilbertOrder
 import kotlin.random.Random
 
-fun main() {
-    application {
-        configure {
-            width = 720
-            height = 720
-        }
-        program {
-            val points = drawer.bounds.offsetEdges(-20.0).uniform(40, Random(0))
-            val sortedPoints = points.hilbertOrder(bits = 16, scale = 1.0)
-            extend {
-                drawer.clear(ColorRGBa.PINK)
-                drawer.stroke = ColorRGBa.RED
-                drawer.lineStrip(sortedPoints)
-            }
+fun main() = application {
+    configure {
+        width = 720
+        height = 720
+    }
+    program {
+        val points = drawer.bounds.offsetEdges(-20.0).uniform(40, Random(0))
+        val sortedPoints = points.hilbertOrder(bits = 16, scale = 1.0)
+        extend {
+            drawer.clear(ColorRGBa.PINK)
+            drawer.stroke = ColorRGBa.RED
+            drawer.lineStrip(sortedPoints)
         }
     }
-}
+}