Lighting fixture

FIG. 1 is a top isometric view of a lighting fixture showing the new design;

FIG. 2 is a bottom isometric view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines shown on the drawings are for illustrative purposes only and form no part of the claimed design.