     processEscapes: false,
            processRefs: true,
            processEnvironments: true,
            preview: 'TeX',
            skipTags: ['script','noscript','style','textarea','pre','code'],
            ignoreClass: 'tex2jax_ignore',
            processClass: 'tex2jax_process'
          },
        },

        // reveal.js plugins
        plugins: [QuartoLineHighlight, PdfExport, RevealMenu, QuartoSupport,

          RevealMath,
          RevealNotes,
          RevealSearch,
          RevealZoom
