condition (phone, tablet, desktop etc.) specified in an Ext.app.Profile PLATFORM CONFIG Used in class declaration or to configure object instances bases on the current platform (phone, tablet, desktop etc.) RESPONSIVE CONFIG (5.0) Change config based on a rule (width, height etc.). Reacts to device orientation change / viewport size change
is just a matter of picking the right tool for the particular situation. For simple tuning at load time, there is platformConfig. For more dynamic conditions, there is responsiveConfig. To change things on a larger scale, there is Ext.app.Profile.
CSS. sencha app watch = live update (only Cmd web server) Inject fresh css to page without reloding instead of edit/build/refresh Performance Compass requires ruby Extend with JS instead of compass/ruby