The idea is quite simple. I am sure a lot of Alteryx enthusiasts use containers frequently. These can also be color coded for better overview and readability of your workflows. However, while connections between tools can be named, they cannot be colored.
Therefore, this idea is very simple. Adding an option to color these connections. This would allow for even more readability of workflows. Especially if a workflow contains multiple separate streams of data, this could help to navigate and keep track of how and where data is flowing.