Guillermo Moreno-Socías

Here is an example. ```tex % !TEX program = pdflatexmk \documentclass{article} \usepackage{todonotes} \reversemarginpar \usepackage{amsthm,thmtools} \makeatletter \dth@everypar={% \@minipagefalse \global\@newlistfalse \@noparitemfalse \if@inlabel \global\@inlabelfalse \begingroup \setbox\z@\lastbox \ifvoid\z@ \kern-\itemindent \fi \endgroup \myheadbefore \unhbox\@labels \fi...

@mbertucci47: I had already tried something like that. But I cannot get it to work when ```postheadspace=\newline```: ``` % !TEX program = pdflatexmk \documentclass{article} \usepackage{todonotes} \reversemarginpar \usepackage{amsthm,thmtools} \declaretheoremstyle[ postheadspace=\newline, postheadhook={\myheadbefore},...

I also tried that (with ```-\baselineskip```), but the height of the line after the head is unknown beforehand. In any case, I was asking for a general mechanism to get...