#597 Feat: Change Graph UI to display subworkflow nodes differently. Issue created by jsonporter Users have said that the current graph UI that shows nested/subworkflows as a solid grey is confusing - it does not show the phase of the (parent) execution and its not clear that its a subworkflow. We want to change this so that: • Subworkflow node (collapsed) color reflects it's phase • Subworkflow node (collapsed) is not solid and instead has a border; border style is TBD. flyteorg/flyteconsole