6.60.3 Can you answer these questions?

6.60.3.1 How to understand behavior of beamercolorbox with regard to width?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=568296

The manual of beamer 3.59 on page 125 reads as follows: 
If the width is larger than the normal text width, as specified by the value of \textwidth, the width 
of the resulting box is reset to the width ... 
[beamer]
 

asked by Nobody-Knows-I-am-a-Dog https://tex.stackexchange.com/landing/r/digest?cta=user&id=196228 1 vote

6.60.3.2 How can I create a lightbox/microfilm effect in beamer slides?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=568238

I'm putting together a beamer presentation, and in a moment of madness I had the idea to give it a sort of lightbox/microfilm/transparency effect, sort of like this or this or this. I tend to keep my ... 
[tikz-pgf] [beamer] [tcolorbox] [fun]
 

asked by crmdgn https://tex.stackexchange.com/landing/r/digest?cta=user&id=36448 1 vote

6.60.3.3 Headers not showing in Arabic letter

https://tex.stackexchange.com/landing/r/digest?cta=question&id=568190

I am trying to create a letter template in Arabic for my business. I am trying to include headers and footers using the fancyhdr package. However, whenever I try to compile the document it shows the ... 
[xetex] [fontspec] [fancyhdr] [polyglossia] [arabic]
 

asked by SaA~\257d Maanan https://tex.stackexchange.com/landing/r/digest?cta=user&id=120990 1 vote