There are two main methods to categorize chart styles. The first is by the number of candlesticks it will take to type the sample, and the opposite categorization is because of the bias of your pattern. The descending triangle sample sorts as price action gets confined within two trendlines; https://financefeeds.com/5-cryptos-below-3-that-will-turn-early-buyers-into-millionaires-like-shiba-inu-xrp-and-ethereum/