Avatar defaults and colors

ts/components/AvatarUploadButton.stories.tsx

@@ -0,0 +1,23 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import React from 'react';
+
+import { storiesOf } from '@storybook/react';
+import { action } from '@storybook/addon-actions';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
+import { AvatarUploadButton, PropsType } from './AvatarUploadButton';
+
+const i18n = setupI18n('en', enMessages);
+
+const createProps = (overrideProps: Partial<PropsType> = {}): PropsType => ({
+  className: overrideProps.className || '',
+  i18n,
+  onChange: action('onChange'),
+});
+
+const story = storiesOf('Components/AvatarUploadButton', module);
+
+story.add('Default', () => <AvatarUploadButton {...createProps()} />);