IconicsImageView background color issue in MaterialDrawer v5.9.1 
Hi Mike,

For IconicsImageView, in MaterialDrawer 5.9.1 package, you can set background color with .setBackgroundColor(int color) in onCreate() but, if called runtime, e.g. onClickListener(), it seems to ignore it.

Rolling back to 5.9.0 all is ok.

Referring issue for MaterialDrawer:
[https://github.com/mikepenz/MaterialDrawer/issues/1851](https://github.com/mikepenz/MaterialDrawer/issues/1851)

Thanks,
Ale