diff --git a/README.md b/README.md
index 6b66b7517..665a74da2 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,7 @@ require("Storage").write('*'+appname,
   // place app-icon.js contents here
 );
 
-// 
+//
 require("Storage").write("+"+appname,{
   "name":"My Great App","type":"",
   "icon":"*"+appname,
@@ -120,8 +120,8 @@ Apps are listed in the Bangle.js menu, accessible from a clock app via the middl
 * `add_to_apps.json` - insert into `apps.json`, describes the widget to bootloader and loader
 * `app.png` - app icon - 48x48px
 * `app-icon.js` - JS version of the icon (made with http://www.espruino.com/Image+Converter) for use in Bangle.js's menu
-* `app.json` - short app name for Bangle.js menu and storage filenames 
-* `app.js` - app code 
+* `app.json` - short app name for Bangle.js menu and storage filenames
+* `app.js` - app code
 
 #### `app-icon.js`
 
@@ -135,11 +135,11 @@ Follow this steps to create a readable icon as image string.
 2. set _X_ Use Compression
 3. set _X_ Transparency (optional)
 4. set Diffusion: _flat_
-5. set Colours: _1 bit_, _4 bit_ or _8 bit Web Palette_ 
+5. set Colours: _1 bit_, _4 bit_ or _8 bit Web Palette_
 6. set Output as: _Image String_
 
 Replace this line with the image converter output:
- 
+
 ```
 require("heatshrink").decompress(atob("mEwwJC/AH4A/AH4AgA=="));
 ```
@@ -152,8 +152,8 @@ Keep in mind to use this converter for creating images you like to draw with `g.
 The widget example is available in [`apps/_example_widget`](apps/_example_widget)
 
 * `add_to_apps.json` - insert into `apps.json`, describes the widget to bootloader and loader
-* `widget.json` - short widget name and storage names 
-* `widget.js` - widget code 
+* `widget.json` - short widget name and storage names
+* `widget.js` - widget code
 
 
 #### `apps.json` format
@@ -170,6 +170,9 @@ The widget example is available in [`apps/_example_widget`](apps/_example_widget
                               // iframe, and it must post back an 'app' structure
                               // like this one with 'storage','name' and 'id' set up
 
+  "allow_emulator":true,      // if 'app.js' will run in the emulator, set to true to
+                              // add an icon to allow your app to be tested
+
   "storage": [                // list of files to add to storage
     {"name":"-appid",         // filename to use in storage
      "url":"",                // URL of file to load (currently relative to apps/)
@@ -204,31 +207,31 @@ The widget example is available in [`apps/_example_widget`](apps/_example_widget
 
 - chaining graphics methodes, eg `g.setColor(0xFD20).setFontAlign(0,0).setfont("6x8",3)`
 
-### Graphic areas 
+### Graphic areas
 
 The screen is parted in a widget and app area for lcd mode `direct`(default).
 
 | areas | as rectangle or point |
-| :-:| :-: | 
-| Widget | (0,0,239,23) | 
+| :-:| :-: |
+| Widget | (0,0,239,23) |
 | Apps | (0,24,239,239) |
 | BTN1 | (230, 55)  |
 | BTN2 | (230, 140) |
 | BTN3 | (230, 210) |
-| BTN4 | (0,0,119, 239)| 
-| BTN5 |  (120,0,239,239) | 
+| BTN4 | (0,0,119, 239)|
+| BTN5 |  (120,0,239,239) |
 
-- Use `g.setFontAlign(0, 0, 3)` to draw rotated string to BTN1-BTN3 with `g.drawString()`. 
+- Use `g.setFontAlign(0, 0, 3)` to draw rotated string to BTN1-BTN3 with `g.drawString()`.
 
 - For BTN4-5 the touch area is named
 
-## Available colors 
+## Available colors
 
 You can use `g.setColor(r,g,b)` OR `g.setColor(16bitnumber)` - some common 16 bit colors are below:
 
 | color-name | color-value|
 | :-: | :-: |
-| Black | 0x0000 | 
+| Black | 0x0000 |
 | Navy | 0x000F |
 | DarkGreen | 0x03E0 |
 | DarkCyan | 0x03EF |
diff --git a/apps/_example_app/add_to_apps.json b/apps/_example_app/add_to_apps.json
index 941880a65..6c7172ec6 100644
--- a/apps/_example_app/add_to_apps.json
+++ b/apps/_example_app/add_to_apps.json
@@ -8,5 +8,5 @@
     {"name":"+7chname","url":"app.json"},
     {"name":"-7chname","url":"app.js"},
     {"name":"*7chname","url":"app-icon.js","evaluate":true}
-  ],
+  ]
 }
diff --git a/apps/_example_widget/add_to_apps.json b/apps/_example_widget/add_to_apps.json
index 9bc4a8e6e..705e504fc 100644
--- a/apps/_example_widget/add_to_apps.json
+++ b/apps/_example_widget/add_to_apps.json
@@ -7,5 +7,5 @@
   "storage": [
     {"name":"+7chname","url":"widget.json"},
     {"name":"-7chname","url":"widget.js"},
-  ],
+  ]
 }