working but incomplete version with new build.

dist/editor/extensions/ext-locale/polygon/en.js

@@ -0,0 +1,14 @@
+export default {
+  name: 'polygon',
+  buttons: [
+    {
+      title: 'Polygon Tool'
+    }
+  ],
+  contextTools: [
+    {
+      title: 'Number of Sides',
+      label: 'sides'
+    }
+  ]
+};

dist/editor/extensions/ext-locale/polygon/zh-CN.js

@@ -0,0 +1,14 @@
+export default {
+  name: '多边形',
+  buttons: [
+    {
+      title: '多边形工具'
+    }
+  ],
+  contextTools: [
+    {
+      title: '边数',
+      label: '边数'
+    }
+  ]
+};