Is there a set of settings/files that can be modified to give kmymoney a dark mode?
Not directly within KMyMoney. However, as it uses the underlying KDE settings, you could look under the Appearance section of the System Settings app.
How about the windows version? There are a lot of misc color settings, but nothing like a “big switch” on how you change it.
I have the same question. I’m using sway, so I have no System Settings app. Where are the settings the control the look of the app? I’d be happy to edit text files.