We want to be completely honest with you here: we're not supposed to sneak any easter eggs into ZAU.
So, of course, we didn't.
Not even a little one.
And we made that very clear in a recent Discord Q+A:
https://store.steampowered.com/app/2739950/Tales_of_Kenzera_ZAU_Demo?snr=1_5_9_