"normal" text-style?

Harlowe 1.2.2

Is there a text-style along the lines of "normal"? I'm randomly selecting a text-style but would like to include the possibility of there not being a style at all. So:

(either: "normal", "shadow", "blur", "blurrier", "smear", "mirror", "upside-down", "fade-in-out", "rumble", "shudder")