This is using an EMA and RSI with slightly modified settings to give good entry and exit points while looking at Bitcoin. I use this on a 4-hour chart and with other indicators to find good positions to enter a trade or exit if things are turning red.
If you click on the EMA line it will color the bars of the chart based on if they are above or below the EMA - This is just visually helpful for me to see the active trend.
Make sure you hover over or click on the EMA line to see the colors of the candles change - it's not visible by default or without doing this.