As someone said:
"The best trend indicator is when you print the chart, put it on the wall
and take a few steps back. If you now can identify the trend you're done!"
This is an attempt of doing the same thing...
I find it handy to switch the color of the trendline depending on the where
the Trend is going. Especially when zooming in on the chart, the color tells
you what the overall Trend is.
Trendline deluxe comes with an extra twist in that it can be colored according
to your Stock index of choice, but still be plotted according to the Stock at hand.
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.