KBL Trend Filter is a combination of Average true range and range breakout settings. When KBL Trend -Filter Vertical line indicated with Green color and price cross over the candle on which the green vertical indicator came, then it is considered as a buy trades. And same for sell trade, When KBL Trend -Filter Vertical line indicated with Red color and price cross below the candle on which the Red vertical indicator came, then it is considered as a sell trades.