mozilla-b2g/gaia — pull request #8672 by basiclines (2013-03-15 11:42:10+00:00)
Title: Bug 830644 - Support WVGA and other non-HiDPI screen dimensions and resolutions

* system [all components but the ones already landed]: px to rem, added background size definitions.
* added @2x assets for system

@timdream @rexboy7 @jmcanterafonseca take a look