This is not a standalone application, you need Smart Launcher installed on your phone to use this theme. You can download Smart Launcher from here: https://play.google.com/store/apps/details?id=ginlemon.flowerfree
Setting a theme: 1. Go to Preferences 2. Click Theme 3. Select Installed 4. Select Snow Time
If the theme failed, please change the theme to default first, then try it again.
If you have a problem or icon request email me please.