state machine/action set lane background colors
General idea: Allow for background colors to be applied within state machine branches and action sets.
Problem 1: Working with large state machines that have many branches it can be easy to lose track of which branch you're looking at. Especially when one branch can span your screen width-wise.
Problem 2: Working inside nested action sets can leave you confused as to which action set you're modifying actions in.
Solution: Allow the ability to apply background colors(and patterns such as vertical striped, horizontal striped, diagonal striped, etc.) to action sets and branches of state machines. Other areas may benefit from this as well.
Extended Improvement: Automatically assign light background colors/patterns to limit the amount of necessary user interaction, but allow the user to override through the controls.