Overview effect background should use more contrast to make windows more visible. Notice the contrast ratio fail that we see in the attached images. Also, for people with blurry vision, it's harder to make out what you see on the screen when you have too much of one color. Solutions are to change the background to a tint of black or use more transparency. Images: https://ibb.co/2yyv1Qf https://ibb.co/WyGgYfr
In the future, please attach images to the bug report, as externally-hosted images can disappear over time. What colors are we measuring here? It looks like you're not measuring between the text and background, but rather between the color of one of the windows and the background? Not sure this makes sense. Window distinguishability isn't affected by the background in this UI. Furthermore, the actual background color depends on the wallpaper, since it's a blurred version of it. And the "blurry vision" test isn't relevant since if your vision is that blurry, you can't use the system at all. Literally nothing will work! :) You need to get better glasses or vision surgery, or else use accessibility features intended for vision-impaired people, like a screen reader.
I don't think your logic is applicable in this case. You're assuming that people only focus on the content inside a window to determine their contents and also assume that people with blurry vision would not use our system. The blurry test was only to illustrate at a lower resolution how little difference there is between the window background and overview background. The background has been the same for me for a while even across multiple installs, I am not really sure the overview background is changing for me unless Neon unstable has a bug. We also have to think of defaults in this case. I get these results with the default combination of wallpaper, breeze style and overview enabled. I only added links to images because bugzilla didn't seem to allow more than one image. I could be wrong.
> You're assuming that people only focus on the content inside a window to determine their contents How else could they distinguish windows, though? Other than the label of course, which as far as I can tell, this bug report isn't talking about. > assume that people with blurry vision would not use our system Yes, I am making that assumption. :) Your screenshot shows Overview in a literally unusable state. All text on the system--even outside of Overview--will be unreadable if one's vision is that blurry. I stand by my assertion that such a person needs to be using accessibility tools to use the system. > I am not really sure the overview background is changing for It does change; just change the wallpaper to something dramatically different and you'll see the Overview background change. > We also have to think of defaults in this case. Sure, if we can establish that there's a real issue here, which I'm contesting. :) > I only added links to images because bugzilla didn't seem to allow more than one image. I could be wrong. Just attach them one at a time.