Hi !
Thanks @ChrisA for your quick answer 
!
I just removed the UID from my file to post it here (I try to have this as a habit as UID can quickly become personnal data under GDPR 
)
If it looks exactly like your file, I must have done something else… I reviewed all my terminal commands and could not find any suspicious actions 
Digging a little more into this, I came accross this thread which led me to this git repo. I’ll try to reset it with $ sudo plymouth-set-default-theme -R qubes-dark and see if it helps 