Demo UI made with a help of WUG toolkit (DO NOT SEND TO CQ).

components/demo_ui/demo.json

+{
+  "imports": [
+    "components/demo_ui/events/events_demo.json",
+    "components/demo_ui/strings/strings_demo.json",
+    "components/demo_ui/reuse/reuse_demo.json"
+  ],
+  "type": "demo",
+  "children": [
+    { "id": "events", "type": "events_demo" },
+    { "id": "strings", "type": "strings_demo" },
+    { "id": "reuse", "type": "reuse_demo" }
+  ],
+  "context": [
+    { "name": "boolean_default", "type": "boolean" },
+    { "name": "boolean_true", "type": "boolean", "default": true },
+    { "name": "boolean_false", "type": "boolean", "default": false },
+    { "name": "int_default", "type": "integer" },
+    { "name": "int_33", "type": "integer", "default": 33 },
+    { "name": "double_default", "type": "double" },
+    { "name": "double_pi", "type": "double", "default": 3.1415 },
+    { "name": "string_default", "type": "string" },
+    { "name": "string_hello", "default": "Hello!" },
+    { "name": "string_list_default", "type": "string_list" },
+    {
+      "name": "string_list_fibo",
+      "type": "string_list",
+      "default": ["1", "1", "2", "3", "5", "8", "13"]
+    },
+    { "name": "username"}
+  ]
+}