OptionalbWhether a <b> tag encloses this run.
OptionalcolorColour for this run, from a <color> tag. Falls back to the node's color.
OptionaliWhether an <i> tag encloses this run.
OptionalsizeSize for this run, from a <size> tag. Falls back to the node's fontSize.
The run of characters this segment draws.
OptionalweightWeight for this run, from a <weight> tag. Falls back to the node's fontWeight.
OptionalwidthThe run's measured width, cached while the line is being laid out so wrapping does not measure the same run twice.
Represents a text segment with styling information