9.20.3 Can you answer these questions?

9.20.3.1 How to highlight internal symmetries while simplifying a symbolic expression?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=286344

Context 
 
I would like to have a function which  symmetrizes and simplifies  a symbolic expression to highlight its internal symmetries. 
 
Let us consider a specific example based on a Kullback distance ... 
[symbolic] [algebraic-manipulation]
 

asked by chris https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1089 Score of 1

9.20.3.2 Big FontSize produces empty result

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=286414

 Style[A, FontSize -> 540] 
(* A with FontSize 540*) 
 
Style[A, FontSize -> 541] 
(* Nothing*) 
 
 
I think FontSize 541 is not too big. Practically there may be a ... 
[graphics] [style] [text] [fonts]
                                                                                  

                                                                                  
 

asked by imida k https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=34532 Score of 1

9.20.3.3 Viewing your own documentation

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=286471

I am currently making a paclet, writing documentation for my package. 
When writing documentation with the Documentation tools, it is displayed in an ``unfinished way". 
How would it be possible to ... 
[packages] [documentation] [paclets]
 

asked by Mstislav Keldysh https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=93185 Score of 4