device:
iphone /
ipad /
android /
app icons /
app store /
badges /
buttons /
calendars /
capture /
coach mark /
comments /
compose /
count /
detail /
empty states /
feed /
graphs /
home /
icons /
launch screen /
list /
login /
maps /
media player /
navigation /
notifications /
popovers /
profile /
search /
settings /
share /
stats /
walk throughs /
trends:
circles /
gradients /
ghost buttons /
rainbows /
list on National Geographic World Atlas
