I recently came across an awesome web font called Font Awesome. How appropriate! Each “character” in the font is a graphical icon instead of a number of letter. Here's what it looks like in my Apps on Tap demo app (I've circled each use):
There are a ton of great icon fonts that you can drop into your App Cloud app without much fuss—just be sure the font is a TTF font so it can work on both iOS and Android. Not only will you save a ton of time in the design stages, these icons will look great at any size and resolution. Just adjust the font-size property in your CSS!
p.s. Get more tips and tricks (and share your own) by joining the Brightcove App Cloud discussion group on Google.