Black mode (dark mode) enabled, use dark fades only
I use dark mode on Pixel 4XL & have used Memento for years now. I love Memento for what I use it for, it's so powerful that I'm probably under-using it. I paid a registration and I love building my own libraries (ie DBs).
I also love Black mode and dark theme, but your app does this really jarring thing in dark mode, which is full white for changing / updating screens.
Worst is using in a dark room: I open a DB, get blasted by a white screen, then enter something & get blasted again. Two really bright white screens in a dark room using dark mode -- makes my head hurt.
If you use dark mode, have the screen change to black. If you use white mode, either change with white or black (I think black is always the better choice).
Thanks for a great app!