PeachDrawing.Core
PeachDrawing.Core.TextMeasurement
TextMeasurement.ItalicSkewAngleSinus Field
The sine of the angle a regular face is sheared by to simulate italic (20 degrees), when a font needs faux-italic synthesis and declares no explicit oblique angle of its own.
public const double ItalicSkewAngleSinus = 0.3420201433256687;