Flow List: Highlight focused flow

Is your feature request related to a problem? Please describe.

With the new flow view, it is sometimes hard to select the line I want. For example, on the right I see a json that I want to analyze. There is the sign > on the left that shows what is the current line, but I often choose the wrong line (one or two above…).

Describe the solution you'd like

I'd appreciate a different background for the current selected line, example below.

Describe alternatives you've considered

There are other way that could help, underline the current line, use of ligther colors or even a symbol that would be repeted between each part of a line.

Additional context

I tryed to do it myself but things like UI stuff are not my cup of tea. Eventually I can gimp the screenshot like below to provide an example: