OptionalalignHorizontal alignment of the line the run starts (first aligned run of a line wins)
OptionalbackgroundBox behind the run (with padding / borderRadius)
OptionalborderOptionalcolorOptionalfontOptionalfontOptionalfontOptionalfontOptionallineLine box height of the run
Optionalpaddingv, [vertical, horizontal] or [top, right, bottom, left]
Text style of one
richentry. Sizes are CSS px.