Make it more visible to select either a single swimlane or all swimlanes

[Bastesque]

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Is your feature request related to a problem? Please describe.
We like to modifying single swimlanes or the entire swimlane stack. Our standard usecase is extending the swimlanes to the right. Often, we extend only one swimlane, although we like to extend all of them.

Describe the solution you'd like
For our users, it would be very helpful to have a visual distinction between a selected swimlane (display endpoints as e. g. blue) and the pool (display endpoints as e. g. orange).

[dvkarlhe]

Hello, will there be a solution or adjustment here?

Kind regards,
Henning