diff --git a/web/settings/account-settings.react.js b/web/settings/account-settings.react.js
index b694b1b7d..cbaa48529 100644
--- a/web/settings/account-settings.react.js
+++ b/web/settings/account-settings.react.js
@@ -1,140 +1,142 @@
 // @flow
 
 import * as React from 'react';
 
 import { logOut, logOutActionTypes } from 'lib/actions/user-actions.js';
 import { useModalContext } from 'lib/components/modal-provider.react.js';
 import SWMansionIcon from 'lib/components/SWMansionIcon.react.js';
 import { useStringForUser } from 'lib/hooks/ens-cache.js';
 import { preRequestUserStateSelector } from 'lib/selectors/account-selectors.js';
 import { accountHasPassword } from 'lib/shared/account-utils.js';
 import {
   useDispatchActionPromise,
   useServerCall,
 } from 'lib/utils/action-utils.js';
 
 import css from './account-settings.css';
+import AppearanceChangeModal from './appearance-change-modal.react.js';
 import PasswordChangeModal from './password-change-modal.js';
 import BlockListModal from './relationship/block-list-modal.react.js';
 import FriendListModal from './relationship/friend-list-modal.react.js';
 import EditUserAvatar from '../avatars/edit-user-avatar.react.js';
 import Button from '../components/button.react.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { useStaffCanSee } from '../utils/staff-utils.js';
 
 function AccountSettings(): React.Node {
   const sendLogoutRequest = useServerCall(logOut);
   const preRequestUserState = useSelector(preRequestUserStateSelector);
   const dispatchActionPromise = useDispatchActionPromise();
   const logOutUser = React.useCallback(
     () =>
       dispatchActionPromise(
         logOutActionTypes,
         sendLogoutRequest(preRequestUserState),
       ),
     [dispatchActionPromise, preRequestUserState, sendLogoutRequest],
   );
 
   const { pushModal, popModal } = useModalContext();
   const showPasswordChangeModal = React.useCallback(
     () => pushModal(<PasswordChangeModal />),
     [pushModal],
   );
 
   const openFriendList = React.useCallback(
     () => pushModal(<FriendListModal onClose={popModal} />),
     [popModal, pushModal],
   );
 
   const openBlockList = React.useCallback(
     () => pushModal(<BlockListModal onClose={popModal} />),
     [popModal, pushModal],
   );
 
   const isAccountWithPassword = useSelector(state =>
     accountHasPassword(state.currentUserInfo),
   );
 
   const currentUserInfo = useSelector(state => state.currentUserInfo);
   const stringForUser = useStringForUser(currentUserInfo);
 
   const staffCanSee = useStaffCanSee();
 
-  const showAppearanceModal = React.useCallback(() => {
-    // TODO
-  }, []);
+  const showAppearanceModal = React.useCallback(
+    () => pushModal(<AppearanceChangeModal />),
+    [pushModal],
+  );
 
   if (!currentUserInfo || currentUserInfo.anonymous) {
     return null;
   }
 
   let changePasswordSection;
   if (isAccountWithPassword) {
     changePasswordSection = (
       <li>
         <span>Password</span>
         <span className={css.passwordContainer}>
           <span className={css.password}>******</span>
           <a className={css.editPasswordLink} onClick={showPasswordChangeModal}>
             <SWMansionIcon icon="edit-1" size={22} />
           </a>
         </span>
       </li>
     );
   }
 
   let preferences;
   if (staffCanSee) {
     preferences = (
       <div className={css.preferencesContainer}>
         <h4 className={css.preferencesHeader}>Preferences</h4>
         <div className={css.content}>
           <ul>
             <li>
               <span>Appearance</span>
               <a className={css.editPasswordLink} onClick={showAppearanceModal}>
                 <SWMansionIcon icon="edit-1" size={22} />
               </a>
             </li>
           </ul>
         </div>
       </div>
     );
   }
 
   return (
     <div className={css.container}>
       <h4 className={css.header}>My Account</h4>
       <EditUserAvatar userID={currentUserInfo.id} />
       <div className={css.content}>
         <ul>
           <li>
             <p className={css.logoutContainer}>
               <span className={css.logoutLabel}>{'Logged in as '}</span>
               <span className={css.username}>{stringForUser}</span>
             </p>
             <Button variant="text" onClick={logOutUser}>
               <p className={css.buttonText}>Log out</p>
             </Button>
           </li>
           {changePasswordSection}
           <li>
             <span>Friend List</span>
             <Button variant="text" onClick={openFriendList}>
               <p className={css.buttonText}>See List</p>
             </Button>
           </li>
           <li>
             <span>Block List</span>
             <Button variant="text" onClick={openBlockList}>
               <p className={css.buttonText}>See List</p>
             </Button>
           </li>
         </ul>
       </div>
       {preferences}
     </div>
   );
 }
 
 export default AccountSettings;
diff --git a/web/settings/appearance-change-modal.css b/web/settings/appearance-change-modal.css
new file mode 100644
index 000000000..acb4cb164
--- /dev/null
+++ b/web/settings/appearance-change-modal.css
@@ -0,0 +1,27 @@
+.container {
+  padding: 16px 32px 24px;
+}
+
+.header {
+  font-size: var(--l-font-18);
+  color: var(--fg);
+  font-weight: var(--normal);
+}
+
+.buttonContainer {
+  display: flex;
+  justify-content: space-between;
+  margin-top: 24px;
+}
+
+.button {
+  color: var(--fg);
+}
+
+.button:hover {
+  cursor: pointer;
+}
+
+.selectedButton {
+  border-bottom: 1px solid var(--fg);
+}
diff --git a/web/settings/appearance-change-modal.react.js b/web/settings/appearance-change-modal.react.js
new file mode 100644
index 000000000..61a049a35
--- /dev/null
+++ b/web/settings/appearance-change-modal.react.js
@@ -0,0 +1,59 @@
+// @flow
+
+import classNames from 'classnames';
+import * as React from 'react';
+
+import { useModalContext } from 'lib/components/modal-provider.react.js';
+
+import css from './appearance-change-modal.css';
+import Modal from '../modals/modal.react.js';
+
+function AppearanceChangeModal(): React.Node {
+  const { popModal } = useModalContext();
+
+  const [selectedMode, setSelectedMode] = React.useState('dark');
+
+  const onClickLightModeButton = React.useCallback(
+    () => setSelectedMode('light'),
+    [],
+  );
+
+  const onClickDarkModeButton = React.useCallback(
+    () => setSelectedMode('dark'),
+    [],
+  );
+
+  const lightModeButtonClassName = classNames({
+    [css.button]: true,
+    [css.selectedButton]: selectedMode === 'light',
+  });
+
+  const darkModeButtonClassName = classNames({
+    [css.button]: true,
+    [css.selectedButton]: selectedMode === 'dark',
+  });
+
+  return (
+    <Modal name="Appearance" onClose={popModal}>
+      <div className={css.container}>
+        <h1 className={css.header}>App theme</h1>
+        <div className={css.buttonContainer}>
+          <div
+            className={lightModeButtonClassName}
+            onClick={onClickLightModeButton}
+          >
+            Light
+          </div>
+          <div
+            className={darkModeButtonClassName}
+            onClick={onClickDarkModeButton}
+          >
+            Dark
+          </div>
+        </div>
+      </div>
+    </Modal>
+  );
+}
+
+export default AppearanceChangeModal;