Personalize the Windows 8 Company Store application

Get the Windows 8 Company Store to personalize package: http://companystore.codeplex.com/releases
Unzip it in a directory

Customization


...
<Identity ProcessorArchitecture="neutral" Version="1.0.0.16" Publisher="CN=YOUR PUBLISHER NAME" Name="58460AntoineJ.Windows8CompanyStore"/>
<Properties>
     <DisplayName>YOUR APPLICATION NAME</DisplayName>
     <PublisherDisplayName>AntoineJ</PublisherDisplayName>
     <Logo>Assets\Logo50x50.png</Logo>
</Properties>
...
<Applications>
    <Application EntryPoint="Enterprise_Store.App" Executable="CompanyStore.exe" Id="App">
          <VisualElements ToastCapable="true" BackgroundColor="#5B9BD5" ForegroundText="light" Description="My company application portal" SmallLogo="Assets\Logo30x30.png" Logo="Assets\Logo150x150.png" DisplayName="Windows 8 Company Store">
               <DefaultTile ShortName="YOUR APPLICATION NAME" WideLogo="Assets\Logo310x150.png" ShowName="noLogos"/>
               <SplashScreen BackgroundColor="YOUR SPLASHSCREEN COLOR IN HEXA" Image="Assets\Logo620x300.png"/>
           ....    
           </VisualElements>
    </Application>
</Applications>
...


Create the appx package

Once customize, you can create an application package using the following command line:
Makeappx.exe pack /d [path to the unzipped directory] /p [path to the appx file to create]

More information on makeapp.exe here http://msdn.microsoft.com/fr-fr/library/windows/desktop/hh446767.aspx

Sign the application package

Now that you have your application package you need to sign it to be able to deploy it. Here is the command line to sign your certificate:
Signtool.exe sign /a /v /fd SHA256 /f [path to your certificate.pfx] /p [the password of the pfx file] [path to the appx package to sign]

Know that your application package is customized and signed you can install it to your computers (the certificate you have used must be trusted).