Are you using a theme of any sort? Based on what I can see poking through in the background it appears you may be.
I would try changing themes and then changing back to the one you want. I would not be surprised if the one you want then maintains the color scheme of the one you don't for the items you've reported.
This looks like the theme is not going through and changing all the various settings back to what they should be after they've been changed by something else, such as turning on high-contrast settings.
Either that or start playing with the Personalization settings to see if you can undo it or try applying a theme (you can download them from the Windows Store) to see if that will do the trick.
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
Memory is a crazy woman that hoards rags and throws away food.
~ Austin O'Malley