CODE EXAMPLE FOR CSHARP

How to fill text with 2 different color/texture

private void SomeControl_Paint(object sender, PaintEventArgs e)
{
    var g = e.Graphics;
    var r = (sender as Control).ClientRectangle;
            
    using (var gp = new GraphicsPath())
    using (var sf = new StringFormat())
    using (var fnt = new Font("Blackoak Std", 72))
    using (var hbr = new HatchBrush(HatchStyle.Percent25, Color.White, Color.Red))
    {
        sf.Alignment = sf.LineAlignment = StringAlignment.Center;

        gp.AddString("RED", fnt.FontFamily, (int)fnt.Style, GetEmFontSize(fnt), r, sf);

        g.SmoothingMode = SmoothingMode.AntiAlias;
        g.FillPath(Brushes.Red, gp);

        var rf = gp.GetBounds();
        rf.Height /= 2f;

        g.SetClip(rf, CombineMode.Exclude);
        g.FillPath(hbr, gp);
        g.ResetClip();
        g.SmoothingMode = SmoothingMode.None;
    }
}

private float GetEmFontSize(Font fnt) =>
    fnt.SizeInPoints * (fnt.FontFamily.GetCellAscent(fnt.Style) + 
    fnt.FontFamily.GetCellDescent(fnt.Style)) / fnt.FontFamily.GetEmHeight(fnt.Style);