FastColoredTextBoxNS.AutocompleteListView.OnPaint C# (CSharp) Method

        protected override void OnPaint(PaintEventArgs e)
        {
            AdjustScroll();
            int startI = VerticalScroll.Value/itemHeight - 1;
            int finishI = (VerticalScroll.Value + ClientSize.Height)/itemHeight + 1;
            startI = Math.Max(startI, 0);
            finishI = Math.Min(finishI, visibleItems.Count);
            int y = 0;
            int leftPadding = 18;
            for (int i = startI; i < finishI; i++)
            {
                y = i*itemHeight - VerticalScroll.Value;

                var item = visibleItems[i];

                if (item.BackColor != Color.Transparent)
                    using (var brush = new SolidBrush(item.BackColor))
                        e.Graphics.FillRectangle(brush, 1, y, ClientSize.Width - 1 - 1, itemHeight - 1);

                if (ImageList != null && visibleItems[i].ImageIndex >= 0)
                    e.Graphics.DrawImage(ImageList.Images[item.ImageIndex], 1, y);

                if (i == FocussedItemIndex)
                    using (
                        var selectedBrush = new LinearGradientBrush(new Point(0, y - 3), new Point(0, y + itemHeight),
                            Color.Transparent, SelectedColor))
                    using (var pen = new Pen(SelectedColor))
                    {
                        e.Graphics.FillRectangle(selectedBrush, leftPadding, y, ClientSize.Width - 1 - leftPadding,
                            itemHeight - 1);
                        e.Graphics.DrawRectangle(pen, leftPadding, y, ClientSize.Width - 1 - leftPadding, itemHeight - 1);
                    }

                if (i == hoveredItemIndex)
                    using (var pen = new Pen(HoveredColor))
                        e.Graphics.DrawRectangle(pen, leftPadding, y, ClientSize.Width - 1 - leftPadding, itemHeight - 1);

                using (var brush = new SolidBrush(item.ForeColor != Color.Transparent ? item.ForeColor : ForeColor))
                    e.Graphics.DrawString(item.ToString(), Font, brush, leftPadding, y);
            }
        }