I can't help you but I just came here to say that I also very much dislike the trend that everything has to look flat. Imho visual, simulated depth (through shadows, gradients, etc.) can make UIs look actually much cleaner, because hierarchy, grouping of elements and differentiation between buttons/text inputs and non-interactive elements is often much more obvious on first sight.
JS is horse shit. Instead of trying to improve it or using that high level scripting language as a compilation target (wtf?!), we should deprecate it entirely and put all efforts into web assembly.
I can't help you but I just came here to say that I also very much dislike the trend that everything has to look flat. Imho visual, simulated depth (through shadows, gradients, etc.) can make UIs look actually much cleaner, because hierarchy, grouping of elements and differentiation between buttons/text inputs and non-interactive elements is often much more obvious on first sight.