Looks like we can't reproduce the issue or there's a problem in the test case provided.
[PR 1] Ext.app.Application -> custom configs
with ST 1.x, i was able to add custom configs to an app, like:
this was really useful, like for setting namespaced "global" vars for the app.
you can get them later with SC.foo.
in ST 2 they don't get applied anymore.
the only workaround i see (without extending / overriding application) is:
it would be cool if setting custom configs will get possible again!
SC.foo = 'bar';