The ornamental design for a lightingfixture, as shown and described.
FIG. 1 is a top perspective view of a lighting fixture depicting a new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a right elevational view thereof;
FIG. 5 is a left elevational view thereof;
FIG. 6 is a back 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 depicting the new design and mounted using an alternative hanging arrangement.
The broken lines extending from the perimeter of the lighting fixtures in FIGS. 3-6 and FIG. 9 represent environment which forms no part of the claimed design. The broken lines dissecting the hanging arrangement in FIGS. 1-6 and FIG. 9 represent the fact that the hanging arrangement may vary in length. The remaining broken line disclosures in the views represent portions of the lighting fixture that form no part of the claimed design.