Just a shot in the dark, besides having to add every... EVERY control into an array, can one manipulate one aspect of every control in one's app in one shot. Eg, set the font bold in all controls, (if it has a text element), or set colour to blue if elements have a background. I give not a tot to the element, rather the ability.
I ask, as I want to add a font size in 'Settings' of an app, but suddenly realizing that there is an absolutely monstrous amount of typing, dragging, clicking etc to accomplish the task having made the decision long after the fact.
(Reminds me of the old saying, 'Failing to plan, is planning to fail.' d'oh!)