Used to be black - recently changed it to gray so it's less of a "omg I'm going to poke my eyes out with a rusty spoon" effect with light themes (and the default theme is light).
That's exactly how the gray (almost white) feels with the dark theme! Which is a downgrade IMO. AquaMail had the best dark theme. Well, had. Please make a poll and ask the dark theme connoisseurs. I bet my right hand they'll agree.
If copy and paste worked in version 1.16. for small screen devices, I wouldn't mind using prior versions instead.
Keep in mind, my device is low budget only 1gb RAM so apps get force closed quite often thus I see this annoying shiny bright splash screen a lot!