OpenTween.TweenMain.ChangeItemStyleRead C# (CSharp) Method

        private void ChangeItemStyleRead(bool Read, ListViewItem Item, PostClass Post, DetailsListView DList)
        {
            Font fnt;
            //フォント
            if (Read)
            {
                fnt = _fntReaded;
                Item.SubItems[5].Text = "";
            }
            else
            {
                fnt = _fntUnread;
                Item.SubItems[5].Text = "★";
            }
            //文字色
            Color cl;
            if (Post.IsFav)
                cl = _clFav;
            else if (Post.RetweetedId != null)
                cl = _clRetweet;
            else if (Post.IsOwl && (Post.IsDm || this._cfgCommon.OneWayLove))
                cl = _clOWL;
            else if (Read || !this._cfgCommon.UseUnreadStyle)
                cl = _clReaded;
            else
                cl = _clUnread;

            if (DList == null || Item.Index == -1)
            {
                Item.ForeColor = cl;
                if (this._cfgCommon.UseUnreadStyle)
                    Item.Font = fnt;
            }
            else
            {
                DList.Update();
                if (this._cfgCommon.UseUnreadStyle)
                    DList.ChangeItemFontAndColor(Item.Index, cl, fnt);
                else
                    DList.ChangeItemForeColor(Item.Index, cl);
                //if (_itemCache != null) DList.RedrawItems(_itemCacheIndex, _itemCacheIndex + _itemCache.Length - 1, false);
            }
        }