Visually uniformity is a broad trend that affects both areas. The monochrome line-art UI icons that are used everywhere are every bit as bad as Google's app icons.

Here are some icons I screenshotted off a website. I challenge you to tell me what they mean

http://www.marginalia.nu/junk/icons.png

http://www.marginalia.nu/junk/icons2.png

Hint: „ǝsıɹdɹǝʇuǝ ʎɹʇ„ sı dn oʇ ƃuıʇuıod ʍoɹɹɐ ǝɥʇ puɐ „sǝsıɹdɹǝʇuǝ„ sı ǝqoʃƃ ǝɥ⊥