Inversion mode per application

[dharkness]

Certain applications do not have a day/night mode or theming support, and they are painful to switch to as the screen flashes bright before I can toggle NegativeScreen. It would be great to be able to specify a per-application inversion mode in the config file that would be used when switching or launching applications. It doesn't need to affect only the application's windows; applying system-wide is just fine.

Bonus points for a key combo that would write the current mode for the current application to the config file. Otherwise, I don't know how you'd tie "some text" to application X. Registry key? Application name?