AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.8.9" />

.NET API 1,181,184 bytes

 TableFrames

public enum TableFrames
The list of possible table frame directives.
namespace AngleSharp.Dom.Html { public enum TableFrames { Void, Box, Above, Below, HSides, VSides, LHS, RHS, Border } }