Dear god, i fucking hate smart-asses like you. I bet OP could use gay porn in those thumbnails too to satisfy you aswell, but maybe images of popular games fit better right?
It's not "false advertising", idiot.
Because OP does not sell those goddamn games and only wanted to show off his UI capabilities. In fact it looks like he doesn't even fucking sell anything, so what the hell should he advertise for?
Looks like OP's been passionately working on this project for his own purposes since almost two years, shared it for good will and probably doesn't give a singular fuck about you using it or not. Just take it or leave it.
The entitlement of some people...
Entitled, because you're blatantly calling posts about a free product "false advertisement" while OP is not advertising games.
It's a MOCKUP, guy wont spend time to research the DRM Protection of every fucking game on Steam to provide you accurate thumbnails. Its a software for games and it showcases pictures of GAMES. He doesnt promote the games but his software.
You should definitely google the definition of the word "Mockup" before you continue being a retard in this forum. Have a nice day.