Thank you and feature request

[621625]

Hi,
I'm BM, a very nice and polite guy. This app is very useful. I use it all the time on my screen.
Feature request:
A similar app that adjusts the brightness of the screen programmatically for example to make everything 50% brighter on e-readers.

[621625]

I don't mean hardware brightness, backlights and such. I mean a similar approach that you took with negative colors where adjustment is made programmatically.