I'd like have default styles for UIViews.
Let's say that I want to have ALL UILabel with backgroundColor of color.light_gray.
Moreover I want to style my custom UIViews, e.g. for EVERY AttributedUILabel I want to have kerning value set to 2.
How to resolve that in RMQ?
In your RMQ application, you should have an ApplicationStylesheet class from which all your other stylesheets should inherit.
You could add a default_label method in this ApplicationStylesheet:
To apply the style you would have to use it when you append your label
Same goes for your AttributeUILabel, create a method in your ApplicationStylesheet and use the style when you append it to the view.
I suggest you go back to the RMQ stylesheets documentation, it shows everything you need to know about styling.