diff --git a/orx-jvm/orx-panel/src/demo/kotlin/DemoHorizontalLayout01.kt b/orx-jvm/orx-panel/src/demo/kotlin/DemoHorizontalLayout01.kt
index 9de6945d..d72b7e38 100644
--- a/orx-jvm/orx-panel/src/demo/kotlin/DemoHorizontalLayout01.kt
+++ b/orx-jvm/orx-panel/src/demo/kotlin/DemoHorizontalLayout01.kt
@@ -1,5 +1,6 @@
 import org.openrndr.application
 import org.openrndr.color.ColorRGBa
+import org.openrndr.color.Linearity
 import org.openrndr.extensions.SingleScreenshot
 import org.openrndr.math.Spherical
 import org.openrndr.math.Vector3
@@ -41,40 +42,43 @@ fun main() = application {
 
                 div("horizontal") {
                     // A bunch of names for generating buttons
-                    listOf("load", "save", "redo", "stretch", "bounce",
-                            "twist", "swim", "roll", "fly", "dance")
-                            .forEachIndexed { i, word ->
+                    listOf(
+                        "load", "save", "redo", "stretch", "bounce",
+                        "twist", "swim", "roll", "fly", "dance"
+                    )
+                        .forEachIndexed { i, word ->
 
-                                // A fun way of generating a set of colors
-                                // of similar brightness:
-                                // Grab a point on the surface of a sphere
-                                // and treat its coordinates as an rgb color.
-                                val pos = Vector3.fromSpherical(
-                                        Spherical(i * 19.0, i * 17.0, 0.4))
-                                val rgb = ColorRGBa.fromVector(pos + 0.4)
+                            // A fun way of generating a set of colors
+                            // of similar brightness:
+                            // Grab a point on the surface of a sphere
+                            // and treat its coordinates as an rgb color.
+                            val pos = Vector3.fromSpherical(
+                                Spherical(i * 19.0, i * 17.0, 0.4)
+                            )
+                            val rgb = ColorRGBa.fromVector(pos + 0.4)
 
-                                button {
-                                    label = word
-                                    style = styleSheet {
-                                        // Use Color.RGBa() to convert a ColorRGBa
-                                        // color (the standard color datatype)
-                                        // into "CSS" format:
-                                        background = Color.RGBa(rgb)
-                                    }
+                            button {
+                                label = word
+                                style = styleSheet {
+                                    // Use Color.RGBa() to convert a ColorRGBa
+                                    // color (the standard color datatype)
+                                    // into "CSS" format:
+                                    background = Color.RGBa(rgb)
+                                }
 
-                                    // When the button is clicked replace
-                                    // the header text with the button's label
-                                    events.clicked.listen {
-                                        header.replaceText(it.source.label)
-                                    }
+                                // When the button is clicked replace
+                                // the header text with the button's label
+                                events.clicked.listen {
+                                    header.replaceText(it.source.label)
                                 }
                             }
+                        }
                 }
             }
         }
         extend(cm)
         extend {
-            drawer.clear(0.2, 0.18, 0.16, 1.0)
+            drawer.clear(ColorRGBa(0.2, 0.18, 0.16, 1.0, Linearity.SRGB))
         }
     }
 }
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