When authoring the course and creating the module template, consistancy is key - just like assignments you create to give face to face or handouts you pass to students and parents, you should be consistant in the look and feel of the "product" - think about the logo of a company or a company slogan - it identifies the company/product. What we create for our students should do the same thing - the look and feel of our modules should identify our course and our persona as well.