OpenTween.FilterDialog.ListFilters_DrawItem C# (CSharp) Method

        private void ListFilters_DrawItem(object sender, DrawItemEventArgs e)
        {
            e.DrawBackground();

            if (e.Index != -1)
            {
                var filter = (PostFilterRule)this.ListFilters.Items[e.Index];
                var isSelected = e.State.HasFlag(DrawItemState.Selected);

                Brush textBrush;
                if (isSelected)
                    textBrush = SystemBrushes.HighlightText;
                else if (filter.Enabled)
                    textBrush = SystemBrushes.WindowText;
                else
                    textBrush = SystemBrushes.GrayText;

                e.Graphics.DrawString(filter.ToString(), e.Font, textBrush, e.Bounds);
            }

            e.DrawFocusRectangle();
        }