Just upgraded to SW 2016 on Monday...many problems (I really miss 2015). Most are serious enough that they are getting real attention to be fixed (as in, we're spending money to fix problems with the software we just spent money to get). But this one is a little more nit picky so I'll see if there's an easy solution that doesn't require lots of time and effort.
Not sure if I'm the only one seeing this, but I haven't seen anything else online about it. Given how much easier it is on the eyes, I desperately want to use the "Dark" background color option for SW. However, when using this background (and not with any other background options) I get some weird behavior. As you can see in the image, the problem crops up when I have an option dialog box open up on the left side of my screen (in this case "Mate", but it happens with all of them). Anywhere there is a checkbox, the text related to it gets overlapped with whatever was in the design tree behind it. What you're seeing are features of one of the parts in my assembly, very inconveniently over the top of the pertinent text.
Likewise, if I keep that option box open and minimize the SW window then restore it, I get whatever was on my screen in that location. In this case, it was the desktop and a word document I had placed there. Same thing happens if I have a window open in front of it, such as opening up the Properties or Options window. If it gets placed in front of the check boxes and then closed, I get that image placed over the top of the text.
Has anyone seen this before? I can't tell you how much I am going to hate starting at a bright white screen all day every day, hoping this is not long term.