diff --git a/README.md b/README.md
index 082bde4..7c1cef5 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# PhotoMound
+# BitMappery
 
 ## So you are rebuilding Photoshop in the browser ?
 
@@ -11,7 +11,7 @@ related to Photoshop-esque features aren't welcomed.
 Yep, though it helps having worked five years in the photo software industry and having
 tackled problems before.
 
-PhotoMound does however make use of the following excellent libraries to speed up its development:
+BitMappery does however make use of the following excellent libraries to speed up its development:
 
  * [Vue](https://github.com/vuejs/vue) with [Vuex](https://github.com/vuejs/vuex) and [VueI18n](https://github.com/kazupon/vue-i18n)
  * [Pickr](https://github.com/Simonwep/pickr) by Simonwep
diff --git a/package-lock.json b/package-lock.json
index f3591b3..72d9459 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,5 +1,5 @@
 {
-  "name": "photomound",
+  "name": "bitmappery",
   "version": "0.1.0",
   "lockfileVersion": 1,
   "requires": true,
diff --git a/package.json b/package.json
index 710fc2f..b1e81da 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "photomound",
+  "name": "bitmappery",
   "version": "0.1.0",
   "private": true,
   "scripts": {
diff --git a/public/login.html b/public/login.html
index 9712c65..d3fa7e0 100644
--- a/public/login.html
+++ b/public/login.html
@@ -1,8 +1,8 @@
 <html>
 <body>
-    <h1>oAuth result for PhotoMound</h1>
+    <h1>oAuth result for BitMappery</h1>
     <p>
-        You should return to PhotoMound shortly. If not, an authentication
+        You should return to BitMappery shortly. If not, an authentication
         error has occurred with the external API.
     </p>
 </body>
diff --git a/src/photomound.vue b/src/bitmappery.vue
similarity index 100%
rename from src/photomound.vue
rename to src/bitmappery.vue
diff --git a/src/components/application-menu/application-menu.vue b/src/components/application-menu/application-menu.vue
index 1fa3371..47930d0 100644
--- a/src/components/application-menu/application-menu.vue
+++ b/src/components/application-menu/application-menu.vue
@@ -28,7 +28,7 @@
             <span>&#9776;</span>
         </div>
         <h1>
-            Photo<span class="emphasis">Mound</span>
+            Bit<span class="emphasis">Mappery</span>
         </h1>
         <ul class="menu-list">
             <!-- file menu -->
diff --git a/src/main.js b/src/main.js
index 416e5c8..eda78af 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,5 +1,5 @@
 import Vue        from "vue";
-import PhotoMound from "./photomound.vue";
+import BitMappery from "./bitmappery.vue";
 // igorski.nl maintains its own service worker registration, if your
 // custom app requires PWA support, uncomment the following line
 //import "./registerServiceWorker"
@@ -7,5 +7,5 @@ import PhotoMound from "./photomound.vue";
 Vue.config.productionTip = false;
 
 new Vue({
-    render: h => h( PhotoMound )
+    render: h => h( BitMappery )
 }).$mount( "#app" );
diff --git a/src/messages.json b/src/messages.json
index 6c99fde..61dca64 100644
--- a/src/messages.json
+++ b/src/messages.json
@@ -1,6 +1,6 @@
 {
     "en-US": {
-        "photomound": "PhotoMound",
+        "bitmappery": "BitMappery",
         "areYouSure": "Are you sure?",
         "newDocumentNum": "New document #{num}",
         "closeDocumentWarning": "Closing the document cannot be undone, are you sure?",
diff --git a/src/store/index.js b/src/store/index.js
index 892a543..d599343 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -30,7 +30,7 @@ import toolModule      from "./modules/tool-module";
 import { saveBlobAsFile, selectFile, readFile } from "@/utils/file-util";
 import { truncate } from "@/utils/string-util";
 
-const PROJECT_FILE_EXTENSION = ".pmp";
+export const PROJECT_FILE_EXTENSION = ".bpy";
 
 // cheat a little by exposing the vue-i18n translations directly to the
 // store so we can commit translated error/success messages from actions
diff --git a/tests/unit/store/store.spec.js b/tests/unit/store/store.spec.js
index 6a456f4..416797d 100644
--- a/tests/unit/store/store.spec.js
+++ b/tests/unit/store/store.spec.js
@@ -1,4 +1,4 @@
-import store from "@/store";
+import store, { PROJECT_FILE_EXTENSION } from "@/store";
 
 const { mutations, actions } = store;
 
@@ -215,7 +215,7 @@ describe( "Vuex store", () => {
             // assert the DocumentFactory saved result is stringified and compressed
             expect( mockUpdateFn ).toHaveBeenNthCalledWith( 2, "compressToUTF16", JSON.stringify( mockSavedDocument ));
             // assert the resulting Blob will be saved to a File
-            expect( mockUpdateFn ).toHaveBeenNthCalledWith( 3, "saveBlobAsFile", expect.any( Object ), "foo.pmp" );
+            expect( mockUpdateFn ).toHaveBeenNthCalledWith( 3, "saveBlobAsFile", expect.any( Object ), `foo${PROJECT_FILE_EXTENSION}` );
             expect( commit ).toHaveBeenCalledWith( "showNotification", expect.any( Object ));
         });
     });
