I've looked but I'm having trouble tracking down skills to control the Spot's screen.   I have worked out via trial and error that 'Alexa, turn screen off' does exactly that.  What I'd like to do is maximise screen brightness, which I'm hoping might be just bright enough to stop you falling A over T when you get up in the middle of the night.  One thing I wondered about is displaying a full white image as the screen background.