Quiet-ceiling light fixture systems and methods

A light fixture, comprising:

• a manifold housing having sidewalls that define a manifold aperture, the sidewalls extending from one or more upper edges of the manifold aperture to a lower edge of the manifold aperture, wherein:
• a first dimension of the manifold aperture defines an axial direction and a second dimension of the manifold aperture defines a lateral direction, and
• the manifold housing comprises one or more first coupling features;
• at least one adapter plate, comprising one or more second coupling features, wherein:
• the at least one adapter plate defines an adapter plate aperture, and
• the one or more second coupling features of the at least one adapter plate removably couple with the one or more first coupling features of the manifold housing to secure the at least one adapter plate to the manifold housing;
• at least one light engine that emits light, wherein the at least one light engine removably couples with the at least one adapter plate such that light emitted by the at least one light engine passes through the adapter plate aperture and the manifold aperture toward a light-emitting side of the light fixture;
• and
• a baffle that substantially spans the manifold aperture and comprises at least one baffle cell;
• wherein the at least one baffle cell comprises:
• (i) an upper baffle edge that defines an upper baffle aperture through which the light emitted by the at least one light engine passes,
• (ii) a lower baffle edge that defines an output aperture for the emitted light, and
• (iii) a baffle cell wall that extends from the upper baffle edge to the lower baffle edge.