Best way to control Dark/Light Mode by app?

[I Need a Drink]

I tried Dark Mode a few times when Mojave came out, but I switched back pretty quickly because some apps I would prefer in Light and I got tired of having to go into the settings and switch. Now with iOS 13, I've started using Dark Mode on my iPhone and iPad and I want to use it again on my Macs, but I still hate the Dark Mode in apps like Word, Excel, Notes and a couple of others. I know there is an app called LightsOut that switches between Light and Dark based on the app, but I have no idea if it is safe to install as it was kind of hard to find on some random website. Is there a safe app to make this work or another way that I haven't seen to control which apps are in Light or Dark?

 

[MBPmac]

Nightowl?

 

[Diamond Dog]

Nightowl?

This is what I used previously. Works well.