AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.8.1" />

.NET API 1,172,480 bytes

 CssQuotesProperty

Information can be found on MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/quotes
public IEnumerable<Tuple<string, string>> Quotes { get; }

Gets the enumeration with pairs of values for open-quote and close-quote. The first pair represents the outer level of quotation, the second pair is for the first nested level, next pair for third level and so on.

public void SetQuotes(Tuple<string, string>[] quotes)