The ornamental design for a lightingfixture, as shown and described.
FIG. 1 is a rear, bottom perspective view of the lighting fixture showing my new design;
FIG. 2 is a front top perspective view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a rear elevation view thereof; and
FIG. 8 is a front elevation view thereof; and,
FIG. 9 is an enlarged view of a portion labeled, ‘FIG. 9’ in FIG. 2.
The dash dot dash lines in FIGS. 2 and 9 are for the purpose of depicting the cut line of the enlarged view and form no part of the claim. The broken lines in the figures illustrate portions of the article that form no part of the claimed design.