I am designing a multi-page form for creating course proposals at a university. Once the record for the proposal is created, the user has a variety of different options for what to do for the proposal. They can cancel/delete it, copy it to a new proposal, print, download, add/read comments, add/read decisions. Our UX team is debating whether there is value to using visual design to indicate severity of actions to the user, and differentiate actions that would fundamentally change the item or trigger a new action (cancel, copy) vs. those things that serve as additional information for the task (print, see comments). Some ideas we have had for differentiation are size, color treatment of the different actions. Some members of the team prefer the clean look of using the same size icons with no differentiation between the different types of actions, and think that indicators of severity would be superfluous. Anybody have experience with this, or know of user-studies that have investigated this issue?