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/primitives/DemoRectangleGrid02.kt

@@ -5,35 +5,35 @@ import org.openrndr.color.ColorRGBa
 import org.openrndr.extra.noise.Random
 import org.openrndr.extra.shapes.primitives.grid
 
-fun main() {
-    application {
-        // Try changing the resolution. The design will use the available space.
-        configure {
-            width = 800
-            height = 400
-        }
-        program {
-            // By specifying the cell size we make sure the design will
-            // contain squares, independently of the window size and its
-            // aspect ratio.
-            val grid = drawer.bounds.grid(50.0, 50.0,
-                20.0, 20.0, 20.0, 20.0).flatten()
+fun main() = application {
+    // Try changing the resolution. The design will use the available space.
+    configure {
+        width = 800
+        height = 400
+    }
+    program {
+        // By specifying the cell size we make sure the design will
+        // contain squares, independently of the window size and its
+        // aspect ratio.
+        val grid = drawer.bounds.grid(
+            50.0, 50.0,
+            20.0, 20.0, 20.0, 20.0
+        ).flatten()
 
-            val grid2 = grid.map { rect ->
-                // Each of these inner grids will occupy the available space
-                // in the parent grid cells. Notice how we don't specify cell
-                // sizes here but counts instead (between 1 and 3 columns and
-                // rows)
-                val count = Random.int(1, 4)
-                rect.grid(count, count, 5.0, 5.0, 5.0, 5.0).flatten()
-            }.flatten().filter { Random.bool(0.5)}
+        val grid2 = grid.map { rect ->
+            // Each of these inner grids will occupy the available space
+            // in the parent grid cells. Notice how we don't specify cell
+            // sizes here but counts instead (between 1 and 3 columns and
+            // rows)
+            val count = Random.int(1, 4)
+            rect.grid(count, count, 5.0, 5.0, 5.0, 5.0).flatten()
+        }.flatten().filter { Random.bool(0.5) }
 
-            extend {
-                drawer.clear(ColorRGBa.PINK)
-                drawer.rectangles(grid)
-                drawer.fill = ColorRGBa.BLACK
-                drawer.rectangles(grid2)
-            }
+        extend {
+            drawer.clear(ColorRGBa.PINK)
+            drawer.rectangles(grid)
+            drawer.fill = ColorRGBa.BLACK
+            drawer.rectangles(grid2)
         }
     }
-}
+}