Is it possible to activate highlight on mouseover in file display and folder tree without styles?
If not, can you make it please? 
I can not use this mode without it... 
Okay, I found another flaw "without styles"... And now with a complete disappointment. 
In thumbnail mode selection area matches the thumbnails size, but not the size specified in the settings (128*128 for example). Is this working as intended?
I mean, just compare selection area on my screenshots. I just don't see any logic here! 
Maybe "mode without styles" is simply outdated and you dont want to improve it anymore?
(Sorry for my english!)
Another screenshot without "Display image and file size in label" - only left folder in my huge selection area... 
These are either intentional or differences from Windows itself.
When using Windows Classic to turn off visual styles in Windows, or when doing the same to an individual app, window or control, you get classic (old) behaviours.
But what is the point in this type of selection? I do not understand how it is useful at all...
Can you upgrade this Windows Classic mode a little, or just forget and move on?
I mean... we have all these cool color options only in old "Windows Classic" mode? Really?
Something like "Classic Mode 2014 edition" or "Classic Mode v11.0" would be nice...
Why not turn styles on?
I used them for more than three years.
They do not have these cool color options and file display/folder tree lines take up more space than without styles (10% more i think), not so compact.
Looks like I will continue to use styles, it makes no sense to use that outdated part of Opus. And this is very sad for me... 
I forgot about this problem and re-enabled this mode again. A day later, I remembered why I disabled it.
Please, can you update this mode so it can select full thumbnail according to thumbnail area in settings but not to the actual thumbnail size? In my case it even states about "SQUARE 256*256 thumbnail" in Opus options, so why just don't select this area? Why ignore it? There is no logic here. Or I just don't understand it.
I am not sure what you mean, sorry.
The thumbnail size will be whatever you specify in Preferences. That's also the area that is selected (plus the area for the label below the thumbnail).
Just look at my old screenshots above...
[quote="leo"]
That's also the area that is selected (plus the area for the label below the thumbnail).[/quote]
No it's not. It works different for years i.e. without visual style label = exact thumbnail "size" in pixels, but not thumbnail size from options. I mean this area is always different if image is not square. Again just look at these screenshots. Maybe it's a bug?
edited:
No it's not. It works different for years i.e. without visual style selected area is the label + exact thumbnail "size" in pixels, but not thumbnail size from options. I mean this area is always different if image is not square. Again just look at these screenshots. Maybe it's a bug?
Eh... I know...
Okay i just give up. "Thanks"
If you think there's a problem here please provide additional information to illustrate what you're talking about (e.g. a screenshot like Leo's).