Option for more compact STDOUT/STDERR label

Describe the feature you would like to see

Would be nice have a more compact STDOUT and STDERR label as a sub option to "Show stdout and stderr labels". A simple blue or red bar line would suffice. As an alternative, blue "O" or red "E" letter for accessibility reasons.

It would be easy to follow visually and non ambiguous while providing more log space in the window.

Describe how you would like to see this feature implemented

No response

Describe any alternatives you've considered

No response