7.63.1 Top new questions this week

7.63.1.1 Ghost shape in TikZ/pgf
7.63.1.2 Syntax of TeX for primitives that demand braces
7.63.1.3 Import symbol from other font without wasting math alphabet
7.63.1.4 On the meaning of \the and \pgf@xx in \edef#1 \the\pgf@xx
7.63.1.5 The concept of boxes in TeX
7.63.1.6 Is `\coffin_gattach:a^\200\246` not really global?
7.63.1.7 Tricolored Rectangle Using Tikz
7.63.1.1 Ghost shape in TikZ/pgf

https://tex.stackexchange.com/landing/r/digest?cta=question&id=618136

My question 
I can easily draw the normal distribution thanks to this answer by Jake. What about the ghost ? 
Context 
This image always breaks the ice when teaching probabilities :) 
(Not that I care so ... 
[tikz-pgf] [fun]
 
asked by JeT https://tex.stackexchange.com/landing/r/digest?cta=user&id=163874 16 votes
answered by Juan CastaA~+-o https://tex.stackexchange.com/landing/r/digest?cta=user&id=231368 25 votes
7.63.1.2 Syntax of TeX for primitives that demand braces

https://tex.stackexchange.com/landing/r/digest?cta=question&id=618556

TeX defines some primitives which some of them expand (or try) the following tokens before execute itself; others even require argument between braces. But I couldn't get the point in this case. 
\... 
[expansion] [grammar] [primitives]
 
asked by Daniel Bandeira https://tex.stackexchange.com/landing/r/digest?cta=user&id=202757 8 votes
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 8 votes
7.63.1.3 Import symbol from other font without wasting math alphabet

https://tex.stackexchange.com/landing/r/digest?cta=question&id=618718

I wish to import a symbol from newtxmath for use with kpfonts without using up a math alphabet to do it. As seen in this question it is easy to do so if one is willing to waste a math alphabet, but in ... 
[fonts] [symbols]
 
asked by Danny https://tex.stackexchange.com/landing/r/digest?cta=user&id=63353 8 votes
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 9 votes
7.63.1.4 On the meaning of \the and \pgf@xx in \edef#1 \the\pgf@xx

https://tex.stackexchange.com/landing/r/digest?cta=question&id=618361

Let us assume that we have a JPEG file of mushrooms given in the following link: mushroom 
Regarding how to put a rounded node at a certain position I appreciate the complete answer of frougon in the ... 
[tikz-pgf] [macros]
 
asked by Aria https://tex.stackexchange.com/landing/r/digest?cta=user&id=187781 7 votes
answered by Symbol 1 https://tex.stackexchange.com/landing/r/digest?cta=user&id=51022 7 votes
7.63.1.5 The concept of boxes in TeX

https://tex.stackexchange.com/landing/r/digest?cta=question&id=618121

Am I right that TeX considers a text in terms of boxes (rectangles) where each character (char) is in a rectangle with three dimensions (height, width and depth (hwd)) and the origin point? 
And that ... 
[symbols] [boxes] [characters] [box]
 
asked by Vladimir https://tex.stackexchange.com/landing/r/digest?cta=user&id=252684 7 votes
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 11 votes
7.63.1.6 Is `\coffin_gattach:a^\200\246` not really global?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=618198

Below is an MWE that typesets 'AB', as it should. However, if one uncomments the \group_begin: and \group_end:, the B disappearsa^\200\224i.e., the attachment seems to be performed locally, despite the use of ... 
[expl3] [bugs] [xcoffins]
                                                                                  

                                                                                  
 
asked by Magnus Lie Hetland https://tex.stackexchange.com/landing/r/digest?cta=user&id=18003 6 votes
answered by Phelype Oleinik https://tex.stackexchange.com/landing/r/digest?cta=user&id=134574 6 votes
7.63.1.7 Tricolored Rectangle Using Tikz

https://tex.stackexchange.com/landing/r/digest?cta=question&id=618922

I am trying to create a tricolored rectangle in which I can specify the point where the color changes (i.e. not necessarily equally spaced like the French flag). I have included a MWE below that ... 
[tikz-pgf]
 
asked by M B https://tex.stackexchange.com/landing/r/digest?cta=user&id=218238 5 votes
answered by Juan CastaA~+-o https://tex.stackexchange.com/landing/r/digest?cta=user&id=231368 6 votes