Say what? Skeuo-huh? Skeuomorphism is the term for digital (user interface) design language that mimics real world counterparts. Think of ruled paper design in note taking apps or envelopes in email clients.
Over the past couple of years, say since iOS7, digital design languages have distanced themselves from this mimicry – creating an ever flat, overly simplified, user interface. Digital minimalism to the max.
Luckily, designers are bored of this race to the bottom and are back on the track of increasing richness in their designs. Its not all Dieter Rams, but also Toulouse-Lautrec & Belle Époque: Colors, Richness and indulgence.