Funny thing at the opposite of Moi ;)

 From:  Frenchy Pilou (PILOU) 8 Dec 2017  (169 of 2745) 
4446.169 
Simlab Composer Light - Lite (free)
menu Render / Exit Parameter any size till 1920 * 1080
menu Render / Environnement parameters = you choose any backgrounds !)

And you can of course change all parameter if you want more advance things! :)

EDITED: 8 Dec 2017 by PILOU