The recent trend of introducing separate "light" and "dark" modes is a band-aid solution to the larger problem: modern interfaces lack contrast. Everything is either mostly-bright or mostly-dark, and I find both physically tiring. I was playing around with a virtualized copy of Snow Leopard last weekend. Coming from modern macOS, what I find most visually striking is always the range of tones. The beautifully deep gr…
I understand and sympathize with the philosophy behind flat design -- that it intentionally puts the interface in the background (low contrast, less variation), so whatever content you're consuming (photos, videos, book text) is the focus.
But I also sympathize with your point -- that when you want to use the interface to do stuff rather than merely scroll through content, it's simply harder now.