Welcome to my work in progress, heh.
Blue and Light blue candles occur when the trend is up, or bullish.
Blue candles indicate a strong bull trend, light blue candles indicate a weaking of bull trend which can trigger a buy tag/entrypoint (scaling in works best)
Pink and Light pink candles occur when the trend is down, or bearish.
The opposite actions of the bullish trend occur in this period.
4H & 2H timeframes are optimal.