Hi Kyle
You can code the work item display function modules.
In the WF definition, at the step where you are sending the work items, click the tab "Work Item Display" -> there you can give a function module which manipulates the HTML which renders the work item in in Business Workplace. Click on "Demo Function Modules" to know the FM signature. Supply one in there and set a break point in the FM. Generate a work item, go to inbox , the debugger will stop at the demo FM supplied earlier. You can then understand the HTML generated and can color code it to show/not show in red.
Searching for the sting "priority" would help locate the HTML string which sets the color.
Hope this helps.
Regards,
Modak