@seidhr/sanity-plugin-muna-schemas/src/components/PortableTextEditorComponents.js

Muna or ᛗᚢᚾᚨ means remember in norse. Muna is a schema for the Sanity Studio that enables detailed descriptions of cultural heritage objects and knowledge about their contexts as well as pages about them (or anything else really.)

import React from 'react'

export const mathInlineIcon = () => (
  <span>
    <span style={{fontWeight: 'bold'}}>∑</span>b
  </span>
)
export const mathIcon = () => <span style={{fontWeight: 'bold'}}>∑</span>

export const highlightIcon = () => <span style={{fontWeight: 'bold'}}>H</span>

export const highlightRender = (props) => (
  <span style={{backgroundColor: 'yellow'}}>{props.children}</span>
)