This theme has been designed by the Italian designer Marianna Guerra and offered for free to all the Smart Launcher users. SLT Loveisright provides a wallpaper with a rainbow flag, and about 30 bright icons and resources to express your support for LGBT community.
You need Smart Launcher installed on your phone to use this theme. You can download SmartLauncher from here: https://play.google.com/store/apps/details?id=ginlemon.flowerfree
To use it, open Smart launcher, enter in the preferences then select Theme.