Extend the sky color picker example

sky/examples/color/color-samples.sky

+<!--
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+-->
+<import src="/sky/framework/sky-element/sky-element.sky" as="SkyElement" />
+<import src="color-sample.sky" />
+
+<sky-element name="color-samples">
+<template>
+  <style>
+    :host {
+      display: flex;
+    }
+    color-sample {
+       height: 100%;
+       flex: 1;
+       margin-left: 2px;
+       margin-right: 2px;
+    }
+    /* Sadly, last-child doesn't work */
+    color-sample:last-child {
+      border: 1px solid gray;
+    }
+  </style>
+  <template repeat="{{ colors }}">
+    <color-sample color="{{ cssColor }}" />
+  </template>
+</template>
+<script>
+module.exports = class extends SkyElement {
+  created() {
+    this.colors = [];
+  }
+}.register();
+</script>
+</sky-element>