Can I choose "all rows" in a data list viewer?

As you can see from the screenshot below, I’d like to change the subtitle colour for my data list viewer. However, I only seem to be able to do that for one row at a time, and I see no way to do it for future rows. Is there a way to do this that I’m not seeing? Is there a way to change the subtitle colour for allllll my rows?
Thanks!

This is possible like this:

That sounds good! I tried it though, and the subtitle colour stayed grey. Is there something I’m doing wrong here?

Screen Shot 2021-04-01 at 4.42.05 PM

This will not work. In your list of values you selected “Subtitle” whereas you should select “ID”.

In the set Data_Viewer_List for “row id” change “row id” to the variable “j” from the loop.

It will work this way, although you might also need to refresh the Data Viewer.

Thank you! I did that (see screenshot), and refreshed the live test app and also the data viewer, but for some reason it still doesn’t work.

Note:
I don’t see a refresh block in your code.

Note 2:
Why “j” is in the pink colour?

Oh sorry! I must have misunderstood what you said. Here is the updated code, and it works! Thank you!