The ornamental design for a lightfixture, as shown and described.
FIG. 1 is a top perspective view of a light fixture in accordance with my design;
FIG. 2 is a bottom plan view of the light fixture in accordance with my design;
FIG. 3 is a top plan view of the light fixture in accordance with my design;
FIG. 4 is a front elevation view of the light fixture in accordance with my design, the opposite view being a mirror image of that shown; and,
FIG. 5 is a side elevation view of the light fixture in accordance with my design, the opposite side view being a mirror image of that shown.
The broken-line disclosure of elements is understood to represent portions of the article in which the design is embodied, but which form no part of the claimed design.
The support pole shown broken away in FIGS. 1, 4, and 5 is understood to represent unclaimed length.