See https://wiki.logos.com/Night_Mode for ways to invert the colors on your PC/Mac, including Logos 6.George commented
The problem with Magnifier and the other suggestions the admin made is that I already have applications that run in dark mode and they look perfect the way they are. The suggestions on the Logos wiki seem like bad work-arounds and I would rather avoid having to do a system-wide change for this one program.
I would prefer a dark gray with off-white text. It is easier on the eyes than black and white. Of course, being able to change the colors to whatever you want would be best.
This appears to be one of the most requested features. There is another request here: https://logos.uservoice.com/forums/42823-logos-bible-software-5/suggestions/6120060-add-themes-to-personalize-colors-colours-and-impro
58 votesGeorge commented
Being able to change the colors to whatever you want would be much better, but at least a dark gray mode with off-white text would be something.