The dark theme on Drive and VPN is a nightmare: to have grey or dark purple text on a black background is ludicrous. who can read that? Maybe this works great for gamers who sit in a dark room all their lives and their eyes can distinguish between black and very dark grey but I think most people like some clearer distinction. Maybe it looks "cool", but it is impractical and annoying.
I am really struggling to the point of thinking of cancelling my Proton subscription. We can select a lighter theme for web services why not for the desktop app? this should be so easy to implement.