Fixed button bug with area interaction.

lib/pixi/button.js

@@ -632,10 +632,10 @@ export default class Button extends PIXI.Container {
      * @return {Button} A reference to the button for chaining.
      */
     hide() {
-        this.opts.strokeAlpha = 0
-        this.opts.strokeActiveAlpha = 0
-        this.opts.fillAlpha = 0
-        this.opts.fillActiveAlpha = 0
+        this.opts.strokeAlpha = 0.0
+        this.opts.strokeActiveAlpha = 0.0
+        this.opts.fillAlpha = 0.0000000001                              // WORKAROUND: See https://github.com/pixijs/pixi.js/wiki/v5-Migration-Guide#graphics-interaction
+        this.opts.fillActiveAlpha = 0.0000000001
 
         this.layout()
 

lib/pixi/index.html

@@ -51,7 +51,8 @@ const index = new Index(itemTemplate, [
         ['Flip Effect', 'flipeffect.html'],
         ['Blur Filter', 'blurfilter.html'],
         ['Text', 'text.html'],
-        ['Scrollview', 'scrollview.html']
+        ['Scrollview', 'scrollview.html'],
+        ['Stylus', 'stylus.html']
     ],
     null)
 index.load()