The Workflow configuration window currently has "Canvas" as the default tab when clicking on whitespace in a workflow.
Since workflow orientation, annotation settings, and progress settings tend to be consistent for a user, I think it makes more sense to have the default tab on something that might be more relevant to the user.
Workflow provides information that is useful...location of the workflow and constants related to the workflow.
Runtime has settings that can change often as the user is developing out the workflow.
So either of these would provide better access to more important info that that found on the Canvas tab.