When to use tertiary button?
Tertiary buttons are usually used for miscellaneous actions: the action is important, but may not be what the user is looking to do right then. This is things like 'add friend', 'add new', 'edit', or 'delete', provided that they aren't a primary action.
What is a full bleed image?
What is bleed in printing? In basic definitions, full bleed printing is used when a project calls for a printed image or document to have no margins, or in other words, when the printed color & images extend all the way to the edge of the paper.