The script features Multi-timeframe EMA20 that uses timeframe multipliers and is smoother by the factor by which you're multiplying your current timeframe.
Default settings are set to display EMA20 on the current (M5) timeframe, as well as M15, H1, H4 and D1 timeframes.
The background color changes intensity based on how many conditions are met - are all EMAs in the right order, is the current close above/below all the EMAs.
Featured is also a range set to 1 hour since the London breakout (can be changed to M15, or however long you'd like - my current setting is 30 minute).
Also featured are levels that I find to be of most importance - such as Daily and Weekly Open, Previous Day's and Week's Highs.
The idea is to only take trades when all stars align - EMAs, break above/below the Opening Range and not to long/short into an important level.
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.