The ornamental design for a lightfixture, as shown and described.
FIG. 1 is a perspective view of the light fixture showing my new design;
FIG. 2 is a front side elevational view thereof, the rear side elevational view being a mirror image;
FIG. 3 a right side elevational view thereof, the left side elevational view being a mirror image;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
The break lines shown in the drawings indicate that the appearance of any portion of the article between the break lines forms no part of the claimed design.
The broken lines shown in the drawings are included for the purpose of illustrating portions of the article that form no part of the claimed design as well.