The ornamental design for a lightingfixture, as shown and described.
FIG. 1 is a bottom perspective view of a lighting fixture depicting a new design;
FIG. 2 is a top perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a back elevational view thereof;
FIG. 5 is a left elevational view thereof;
FIG. 6 is a right elevational view thereof;
FIG. 7 is a top plan view thereof; and
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a front elevational view of the lighting fixture suspended from disclaimed rods rather than the disclaimed chains depicted in FIGS. 1-8; and,
FIG. 10 is a front elevational view of the Lighting Fixture flush mounted to a ceiling, rather than suspended from the ceiling.
The broken lines extending from the perimeter of the lighting fixtures in FIGS. 3-6, 9 and 10 represent environment which forms no part of the claimed design. The remaining broken line disclosures in the views represent portions of the lighting fixture, such as optional structure, that form no part of the claimed design.