Solin is an icon pack. It is not a stand alone application, you need a third party launcher to apply it.(i.e Nova Launcher, Apex, Smart etc)
You can find instructions in the dashboard after you download it.
What you get:
1. 2.492 high quality icons (256x256) 2. 50+ cloud HD wallpapers 3. Supports 25 launchers 4. Icon requests 5. See & Search all icons 6. Supports Muzei 8. Help section that guides how to setup your launcher.
Some of the wallpapers have been found from Zedge. All credits to the creators.
Widgets are from Xwigets and Zooper widget pro (not included).