Specifies the full list of acceptable LiftKit typography style class names.
type LkFontClass =
| "display1"
| "display2"
| "title1"
| "title2"
| "title3"
| "heading"
| "subheading"
| "body"
| "callout"
| "label"
| "caption"
| "capline"
| "display1-bold"
| "display2-bold"
| "title1-bold"
| "title2-bold"
| "title3-bold"
| "heading-bold"
| "subheading-bold"
| "body-bold"
| "callout-bold"
| "label-bold"
| "caption-bold"
| "capline-bold"
| "display1-mono"
| "display2-mono"
| "title1-mono"
| "title2-mono"
| "title3-mono"
| "heading-mono"
| "subheading-mono"
| "body-mono"
| "callout-mono"
| "label-mono"
| "caption-mono"
| "capline-mono";