Image how to match an added text color to be same as surrounding one ?

[zillah]

Hi
I am novice to photoshop and I am trying to learn

While I was watching the below YouTube link

If I need to change a text on an image how can a match the color of a new added text to be same as the surrounding one ? tutorial is showing that but didn't show when there are in different layers

Thanks

 

[revnart]

Here is a quick video showing how do it
https://www.dropbox.com/s/h9nl5tsyhavsouj/Revnart-27-05-2018-12-57-56.mp4?dl=0