My whole canvas turned Black - colors won't change

Hi all,
I was doing my usual work in Weweb and suddenly the screen now is all black, even if I change the colors, the screen is black. Not sure if I pressed any shortcut keys, but I cannot now change colors. Anyone knows what is going on? Thanks in advance.

Went to see the settings and the white is black???

EDIT: It seems to impact all my projects, everything now is black whether is light or dark mode :frowning: .