OptionalcolorText colour.
OptionalcustomA typeface of your own font files for these labels alone. It wins over typeface, and a font
wins over it.
OptionalfontFont faces. The first available one wins. Leave it out to keep the module's own face, set in the labels' typeface.
OptionalhaloColour of the halo drawn around the text, for legibility.
OptionalhaloWidth of the halo, in pixels.
OptionalopacityText opacity, 0 (transparent) to 1 (opaque).
OptionalsizeFont size, in pixels.
OptionaltypefaceTypeface of these labels alone, each keeping its weight. Leave it out and they follow the map's
typeface, which StylingFoundationsModule sets. A customTypeface or a font wins over it.
How a module's text labels look. Sizes and widths are in pixels, and every field but the two typefaces also takes a MapLibre expression.