This theme won the 3rd prize in the contest for PSVita custom themes organized by the well-known website about consoles hacking HackInformer.com.

Click on them to see the full size:

As you can see from the screenshots above (click on them to view the actual size), all the possible icons for a theme have been replaced

The theme also features a custom lockscreen (the home screen with the clock), as you can see below:

In this theme there are also 10 custom backgrounds freely selectable by the user, as you can see below:

Finally, to make it really complete just as an official one, there is even the loop background music in this theme. I chose the song Mickey Mouse March: Tsum Tsum Version you can hear here from Youtube:

Important note: to use this custom theme you need a PSVita compatible with Henkaku hack. This means that it will work only if your PSVita Firmware is 3.60.

1. First of all you need to copy the custom theme's folder inside the Memory Card of your PSVita. You can use any method you like (FTP, USB…), just be sure to insert its folder inside the path: ux0:customtheme/ (create it manually if it does not already exist).
   
   
2. Now you need to download and install Custom Themes Manager homebrew in your PSVita, then run the homebrew by pressing on the icon that should be on the PSVita livearea screen.
   
   
3. In the main menu choose the “Install a Custom Theme from a folder” icon:
   
   
   
4. Now you should find in the list the custom theme you inserted inside the Memory Card:
   
   
   
5. Press X on it and you should view the page with all the details of your custom theme:
   
   
   
6. Press START and the program will install the custom theme in your PSVita database:
   
   
   
7. Now just reboot your console (by pressing START two times in the program's main menu) and now you'll can set the custom theme just as any official PSVita theme (from the Theme Settings menu).

All images used in this theme have been taken from the web through a simple search on Google Images. The background song, as indicated, has been taken from Youtube.
So all rights belong to their respective owners.