Dark mode inconsistencies v6.4RC
                Hi, I am using dark mode on windows and using dark mode in WinSCP 6.4 RC and am getting some light elements which I wanted to ask about:
https://imgur.com/a/H0Mg2PL
(i could not upload more than 3 images so included an IMGUR gallery link)
            
        -  The titlebars on the panels (image 1)
 -  Preferences window (image 2)
 -  Queue panel titlebar as well as column headers and borders (image 3)
 -  Login (saved site entries) window (image 4)
 -  Window/popup during making a connection (image 5)
 
https://imgur.com/a/H0Mg2PL
(i could not upload more than 3 images so included an IMGUR gallery link)


