Цвет фона шрифта

System.Drawing.Color color = app.GetTextBackground(10, 25);
app.SetTextBackground(10, 25, new System.Drawing.Color(255, 100, 0, 0));

color = app.GetTextBackground(10, 25); #System.Drawing.Color
app.SetTextBackground(10, 25, System.Drawing.Color(255, 100, 0, 0))

var color = app.GetTextBackground(10, 25);
//_lib.System.Drawing.Color app.SetTextBackground(10, 25, clr);