[Math] Add other kind of cross out package

janishutz-helpers.tex

@@ -42,6 +42,7 @@
 \usepackage{makecell}
 \usepackage{parskip}
 \usepackage{titlesec}
+\usepackage{centernot}
 
 \newcounter{descriptorShadeStrength}
 \newcounter{shadeStrength}

src/core.sty

@@ -28,6 +28,7 @@
 \RequirePackage{makecell}
 \RequirePackage{parskip}
 \RequirePackage{titlesec}
+\RequirePackage{centernot}
 
 \newcounter{descriptorShadeStrength}
 \newcounter{shadeStrength}