Extensions

Full list of supported extensions https://docs.mathjax.org/en/latest/input/tex/extensions/index.html

Background colors

\( \bbox[red]{x+y} \)

Bold symbols

\(\boldsymbol {x + y} \)

Strikeout

\(\cancel x \bcancel x \xcancel \gamma \)

Colors

\( {\color{red} \alpha} + {\color{blue} y} \)