Also, UI design has traditionally used visual styles from minimalism and the Bauhaus, mainly because the very low-resolutions where it was created (desktops first, later mobile screens) didn't support anything more ornate that would be still visually appealing.
I long for the day when more elaborate and luxurious art-deco-based interfaces become fashionable in UI design.
But minimalist design is not unique to software. If you look everywhere in our industrial society you'll see that. Even buildings follow this trend nowadays. It is a trend that derives from industrialization, where the goal is to make the simplest designs that still retain their utility.
I long for the day when more elaborate and luxurious art-deco-based interfaces become fashionable in UI design.