Pail/csharp-quotes.js

const fixCSharpStrings = () => {
    const hasCSharpFileName = getFileName()?.endsWith('.cs')
    if (!hasCSharpFileName) {
        return
    }
    getClassNameElementsArray('hl-string')
      .filter(e => e.innerText.includes('@"') || e.innerText.includes('@$""'))
      .forEach(e => {
        const s = e.innerHTML
        const firstQuote = s.indexOf('"') + 1
        const spanned = s.substring(firstQuote, s.length - 1).replaceAll('""', '<span class="hl-def">""</span>')
        e.innerHTML = s.substring(0, firstQuote) + spanned + '"'
      })
}


addFix(fixCSharpStrings)