Simple Classic Theme (fully supports Windows 8.1, 10 and 11)

2) It was indeed for disabling Defender, but as it gets flagged anyway I'll just add it as a resource. EDIT: as to the last part of the question: I'm not willing to do that because my original intentions for this utility were as follows:

    1. "Simple" (Of course that term is relevant, but I mean compared to the rest of the options out there)

    2. "Small" (4,35MiB is not big imo)

    3. "Stand-alone"

3) Gonna look into that one!

4) WinForms basically is the one thing I know how to use. It's the simplest form of making a GUI and it does the job really wel in my opinion. The static methods are actually there so that the WinForms code doesn't get clogged up and so that it can be used from the commandline. Still, I'll definetely check my pull requests the upcoming days (weeks? months? ...years?)