H-centre
type: Concept
broader: V-centre
preferred label: مرکز اچ @fa

V-centre
type: Concept
alternative label: Vk-centre
broader: colour centre
narrower: H-centre
preferred label: مرکز وی @fa
scope note: Vk-centre

colour centre
type: Concept
narrower: V-centre
preferred label: مرکز رنگ @fa