A trend will be visible when its seen with fast and slow line cross
UP trend: HHV_fastline = HHV Slowline and LLVfastline crossover LLVSlowline
DOWN trend: HHV_fastline crossunder HHV Slowline and LLVfastline !=LLVSlowline
Attempted to plot the same with multiple options to choose fastline length, slowline length, Multi time frame.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.