Totally agree. Dark Mode causes my eyes to have the "mini blinds" effect.
The old "Pro" apps ⎯ as I recall them ⎯ were good. But with this, I can already see on the horizon me switching back to Light. Finder is hard going. Mail, too. It's a shame, because it could work, but not without the ability of the end user to fine-tune it.
Also, the windows themselves. Everything has a fine lighter stroke line around it. It's horrible.
I just updated to 10.14.1 Beta, and while still in Dark Mode overall, you get this really beautiful simple window at the end of the update, as the mac is setting itself up. After you enter your password. The icloud and analytics windows you always see on an update.
Just a dark, plain window and the shadow.
I can't screenshot it, because it's before OSX kicks in. But it's beautiful.
Then you get into the OS itself, and the windows have these ugly fine stroke lines around them.
It's so anachronistic.