element_text margin support for dictionary

[concimuscb]

Currently element_text supports numbers and lists for parameters.

Numbers make sense but the list implementation is quite confusing in my opinion. Support for a dictionary that takes "top", "bottom", "left", "right" and/or "t", "b", "l", "r" as keys and a number as a value would be a very clean implementation.

[alshan]

Thank you, this might be a good suggestion.
The current implementation however follows an established pattern from CSS in web development, where margins can be specified using either a single value or a list following the top-right-bottom-left order.
So, I'm not quite sure about dictionary-based margins at the moment.

[concimuscb]

It is a very minor thing.

I am just opening issues for suggestions but at the end of the day the library is at an amazing spot so even with most of these ideas being unfeasible it would still be great.