A section cap style (docs/section-cap-patterns.md): the pattern a cut object's cap gets with
SectionPlanes.capStyles. "plain" draws no strokes over a neutral fill (the object's colour with
SectionPlanes.objectEndcaps); "services" always the object's colour
A section cap style (docs/section-cap-patterns.md): the pattern a cut object's cap gets with SectionPlanes.capStyles. "plain" draws no strokes over a neutral fill (the object's colour with SectionPlanes.objectEndcaps); "services" always the object's colour