I’ll post the solution here for anyone interested, this isn’t a good solution, but you can use ColorPicker
instead of Label
.
//Label colorLabel = new Label(); //This doesn't work, cause Rhino apply default styling onto label -> Deletting user-defined color
ColorPicker colorLabel = new ColorPicker();
colorLabel.Value = Eto.Drawing.Color.FromArgb(
sysColor.R,
sysColor.G,
sysColor.B,
sysColor.A);