Changing the color
If you want to change the color of the indicator on the chart, open the indicator's customizing window.
1 - Click on the Edit Studies icon. (looks like the bottom half of an hour glass)
2 - Colors may be changed in the Plots tab or the Globals section.
3 - In this example we are changing the color of the blue candles on the Early In-N-Out indicator.
4 - The new color will now display on the chart.
Edit Studies and Strategies > Settings icon (gear wheel) > Global or tab color
How can I change the Chart Scale Settings in Thinkorswim: