Multiclass ThemeTypes

From publisher blurb: Be All The Things You Can Be! The Starfinder Roleplaying Game gives you three primary tools to customize the class abilities of your character-themes, archetypes, and multiclassing. Unfortunately, that sometimes makes it difficult to exactly create the character you want early on in your character's career. Sometimes what you REALLY need is a way to gain some multiclassing abilities in place of your theme and an archetype. Sometimes what you need is a Multiclass ThemeType! It's Your Character Concept Now!