A swimlane is a visual element used in process flow diagrams or flowcharts. It visually divides work and responsibilities of a business process.
Swimlane flow diagrams differ from other flowcharts. Parallel lines divide the chart into lanes, with one lane for each person, group or sub-process. The swimlanes are labeled to show how the table is organized.
In this particular example there is a swimlane for Incidences, one for error correction and another to the new features.
You can see where you can modify the Kanban Panel here!