hello, I would like to keep things as simple and clear as possible without too many stories!
blue zone = demand zone - from where I expect it to grow or at least to have a reaction
purple area - supply area - from where I expect the price to decrease or at least to have a reaction
liquidation point = for the order flow to be respected, the price must take over that point
protected point = if the price touches that point, it is possible to see a trend change
liquidity = the price will take that liquidity (do not transact there)