iconMode does not work

I use ionic 2.0.0-beta.36 with ionic-angular 2.0.0-beta.11

I testing md and ios styles and I do this

ionicBootstrap(MyApp, [], {
    iconMode: 'ios'

But the style used is always md, some releases ago we was able to set config property in @App
mod: 'ios'
so the desktop app looks like an ios app! But this with iconMode this not work, so what’s the behaviour no for it?

But doing this
works, is this not equal iconMode? How can I configure real MD style and behaviour over all plattforms?

Also the destkop app with standart md style does not looks like examples, for example the menu header in example is blue, is this a BUG or it’s okay and we just need to change color?