12.19.3 Can you answer these questions?

12.19.3.1 Is it possible to pass tikzpicture as argument to chapter or section header

https://tex.stackexchange.com/landing/r/digest?cta=question&id=760950

Complete rework of this question to better match my problem. 
My fist version was just not suitable 
I need to add margin notes to a two column environment. I am using a solution based on this question:... 
[tikz-pgf] [sectioning]
 

asked by Dieter https://tex.stackexchange.com/landing/r/digest?cta=user&id=320070 Score of 1

12.19.3.2 How do directional lights work in asymptote?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=760935

I am trying to draw three intersecting planes in 3D, and I am struggling to get the light right. For some reason the default light settings (White, Headlamp, etc) all render at least one of the planes ... 
[asymptote] [asy]
                                                                                  

                                                                                  
 

asked by mlem https://tex.stackexchange.com/landing/r/digest?cta=user&id=436904 Score of 3

12.19.3.3 TexLive 2026 package installation problem

https://tex.stackexchange.com/landing/r/digest?cta=question&id=761005

I am installing TexLive 2026. And I got this message. 
Regrettably, I don't find a way to run the solution: tlmgr update --all --reinstall-forcibly-removed 
Can someone help me please? 
Thank you in ... 
[texlive] [installing]
 

asked by Horas https://tex.stackexchange.com/landing/r/digest?cta=user&id=437058 Score of 4

answered by ChristopherE https://tex.stackexchange.com/landing/r/digest?cta=user&id=6622 Score of -1